22121033031 has 24 divisors (see below), whose sum is σ = 32772252240. Its totient is φ = 14369942400.

The previous prime is 22121033027. The next prime is 22121033059. The reversal of 22121033031 is 13033012122.

It is not a de Polignac number, because 22121033031 - 2² = 22121033027 is a prime.

It is a super-2 number, since 2×22121033031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22121032995 and 22121033013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121035031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266440 + ... + 339458.

It is an arithmetic number, because the mean of its divisors is an integer number (1365510510).

Almost surely, 2^22121033031 is an apocalyptic number.

22121033031 is a deficient number, since it is larger than the sum of its proper divisors (10651219209).

22121033031 is a wasteful number, since it uses less digits than its factorization.

22121033031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73887 (or 73884 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 22121033031 its reverse (13033012122), we get a palindrome (35154045153).

The spelling of 22121033031 in words is "twenty-two billion, one hundred twenty-one million, thirty-three thousand, thirty-one".