22121032031 has 8 divisors (see below), whose sum is σ = 25298261664. Its totient is φ = 18948072960.

The previous prime is 22121031991. The next prime is 22121032057. The reversal of 22121032031 is 13023012122.

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 22121032031 - 2⁶ = 22121031967 is a prime.

It is a super-2 number, since 2×22121032031² (a number of 21 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 (22121035031) 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, 1056530 + ... + 1077263.

It is an arithmetic number, because the mean of its divisors is an integer number (3162282708).

Almost surely, 2^22121032031 is an apocalyptic number.

22121032031 is a deficient number, since it is larger than the sum of its proper divisors (3177229633).

22121032031 is a wasteful number, since it uses less digits than its factorization.

22121032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135281.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22121032031 its reverse (13023012122), we get a palindrome (35144044153).

The spelling of 22121032031 in words is "twenty-two billion, one hundred twenty-one million, thirty-two thousand, thirty-one".