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220031310000222 = 23371374248857027
BaseRepresentation
bin110010000001111000001000…
…000100100111000001011110
31001212001210021022101101002000
4302001320020010213001132
5212314443110330001342
62055544553253343130
764226510660056050
oct6201701004470136
91055053238341060
10220031310000222
1164121833321a26
1220817660637aa6
1395a0b2c164666
143c498022918d0
151a687bca6744c
hexc81e0812705e

220031310000222 has 64 divisors (see below), whose sum is σ = 562888579069440. Its totient is φ = 62407211997888.

The previous prime is 220031310000193. The next prime is 220031310000223. The reversal of 220031310000222 is 222000013130022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220031310000195 and 220031310000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220031310000223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2124376728 + ... + 2124480299.

It is an arithmetic number, because the mean of its divisors is an integer number (8795134047960).

Almost surely, 2220031310000222 is an apocalyptic number.

220031310000222 is an abundant number, since it is smaller than the sum of its proper divisors (342857269069218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220031310000222 is a wasteful number, since it uses less digits than its factorization.

220031310000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248857182 (or 4248857176 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 220031310000222 its reverse (222000013130022), we get a palindrome (442031323130244).

The spelling of 220031310000222 in words is "two hundred twenty trillion, thirty-one billion, three hundred ten million, two hundred twenty-two", and thus it is an aban number.

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 137 189 274 378 411 822 959 1233 1918 2466 2877 3699 5754 7398 8631 17262 25893 51786 4248857027 8497714054 12746571081 25493142162 29741999189 38239713243 59483998378 76479426486 89225997567 114719139729 178451995134 229438279458 267677992701 535355985402 582093412699 803033978103 1164186825398 1606067956206 1746280238097 3492560476194 4074653888893 5238840714291 8149307777786 10477681428582 12223961666679 15716522142873 24447923333358 31433044285746 36671885000037 73343770000074 110015655000111 220031310000222