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220012220231 = 1913331345811
BaseRepresentation
bin1100110011100111000…
…0000000111101000111
3210000220000210210202022
43030321300000331013
512101041112021411
6245023333233355
721616052005256
oct3147160007507
9700800723668
10220012220231
1185341187491
123678179285b
13179933b50cb
14a911c6879d
155aca305edb
hex3339c00f47

220012220231 has 8 divisors (see below), whose sum is σ = 221231152128. Its totient is φ = 218793987000.

The previous prime is 220012220213. The next prime is 220012220269. The reversal of 220012220231 is 132022210022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220012220231 - 26 = 220012220167 is a prime.

It is a super-2 number, since 2×2200122202312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012220531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463316 + ... + 809126.

It is an arithmetic number, because the mean of its divisors is an integer number (27653894016).

Almost surely, 2220012220231 is an apocalyptic number.

220012220231 is a deficient number, since it is larger than the sum of its proper divisors (1218931897).

220012220231 is a wasteful number, since it uses less digits than its factorization.

220012220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349333.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 220012220231 its reverse (132022210022), we get a palindrome (352034430253).

The spelling of 220012220231 in words is "two hundred twenty billion, twelve million, two hundred twenty thousand, two hundred thirty-one".

Divisors: 1 191 3331 345811 636221 66049901 1151896441 220012220231