22021110221231 has 8 divisors (see below), whose sum is σ = 24095606464128. Its totient is φ = 19958710167000.

The previous prime is 22021110221207. The next prime is 22021110221273. The reversal of 22021110221231 is 13212201112022.

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

It is not a de Polignac number, because 22021110221231 - 2⁶ = 22021110221167 is a prime.

It is a super-2 number, since 2×22021110221231² (a number of 27 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 (22021110221281) 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, 3024043355 + ... + 3024050636.

It is an arithmetic number, because the mean of its divisors is an integer number (3011950808016).

Almost surely, 2^{22021110221231} is an apocalyptic number.

22021110221231 is a deficient number, since it is larger than the sum of its proper divisors (2074496242897).

22021110221231 is a wasteful number, since it uses less digits than its factorization.

22021110221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6048094333.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 22021110221231 its reverse (13212201112022), we get a palindrome (35233311333253).

The spelling of 22021110221231 in words is "twenty-two trillion, twenty-one billion, one hundred ten million, two hundred twenty-one thousand, two hundred thirty-one".