22031121321123 has 16 divisors (see below), whose sum is σ = 29379683424000. Its totient is φ = 14684986968480.

The previous prime is 22031121321059. The next prime is 22031121321193. The reversal of 22031121321123 is 32112312113022.

It is not a de Polignac number, because 22031121321123 - 2⁶ = 22031121321059 is a prime.

It is a super-2 number, since 2×22031121321123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22031121321093 and 22031121321102.

It is not an unprimeable number, because it can be changed into a prime (22031121321193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664592353 + ... + 664625501.

It is an arithmetic number, because the mean of its divisors is an integer number (1836230214000).

Almost surely, 2^{22031121321123} is an apocalyptic number.

22031121321123 is a deficient number, since it is larger than the sum of its proper divisors (7348562102877).

22031121321123 is a wasteful number, since it uses less digits than its factorization.

22031121321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63082.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 22031121321123 its reverse (32112312113022), we get a palindrome (54143433434145).

The spelling of 22031121321123 in words is "twenty-two trillion, thirty-one billion, one hundred twenty-one million, three hundred twenty-one thousand, one hundred twenty-three".