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220131102101120 = 2757433335334261
BaseRepresentation
bin110010000011010101000100…
…001001010000111010000000
31001212102022211222211100100222
4302003111010021100322000
5212323111444114213440
62100102455432402212
764236642630660530
oct6203250411207200
91055368758740328
10220131102101120
116416009236a391
1220832a70846368
1395aa373882582
143c5058b8754c0
151a6b1ad8d72b5
hexc83544250e80

220131102101120 has 256 divisors, whose sum is σ = 615452768282880. Its totient is φ = 73713960714240.

The previous prime is 220131102101093. The next prime is 220131102101129. The reversal of 220131102101120 is 21101201131022.

It is a happy number.

It is a super-2 number, since 2×2201311021011202 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220131102101129) 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, 6425104790 + ... + 6425139050.

It is an arithmetic number, because the mean of its divisors is an integer number (2404112376105).

Almost surely, 2220131102101120 is an apocalyptic number.

220131102101120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220131102101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307726384141440).

220131102101120 is an abundant number, since it is smaller than the sum of its proper divisors (395321666181760).

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

220131102101120 is a wasteful number, since it uses less digits than its factorization.

220131102101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67683 (or 67671 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 220131102101120 its reverse (21101201131022), we get a palindrome (241232303232142).

The spelling of 220131102101120 in words is "two hundred twenty trillion, one hundred thirty-one billion, one hundred two million, one hundred one thousand, one hundred twenty".