22001211021231 has 60 divisors (see below), whose sum is σ = 35785260671160. Its totient is φ = 13464403018560.

The previous prime is 22001211021199. The next prime is 22001211021259. The reversal of 22001211021231 is 13212011210022.

22001211021231 is a `hidden beast` number, since 2 + 200 + 1 + 211 + 0 + 21 + 231 = 666.

It is not a de Polignac number, because 22001211021231 - 2⁵ = 22001211021199 is a prime.

It is a super-2 number, since 2×22001211021231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001211021131) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1962121 + ... + 6917538.

It is an arithmetic number, because the mean of its divisors is an integer number (596421011186).

Almost surely, 2^{22001211021231} is an apocalyptic number.

22001211021231 is a deficient number, since it is larger than the sum of its proper divisors (13784049649929).

22001211021231 is a wasteful number, since it uses less digits than its factorization.

22001211021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8879878 (or 8879856 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 22001211021231 its reverse (13212011210022), we get a palindrome (35213222231253).

The spelling of 22001211021231 in words is "twenty-two trillion, one billion, two hundred eleven million, twenty-one thousand, two hundred thirty-one".