22121034232331 has 8 divisors (see below), whose sum is σ = 22719231134064. Its totient is φ = 21522854757600.

The previous prime is 22121034232313. The next prime is 22121034232333. The reversal of 22121034232331 is 13323243012122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121034232331 is a prime.

It is a super-2 number, since 2×22121034232331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22121034232294 and 22121034232303.

It is not an unprimeable number, because it can be changed into a prime (22121034232333) 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, 1763120 + ... + 6881181.

It is an arithmetic number, because the mean of its divisors is an integer number (2839903891758).

Almost surely, 2^{22121034232331} is an apocalyptic number.

22121034232331 is a deficient number, since it is larger than the sum of its proper divisors (598196901733).

22121034232331 is an equidigital number, since it uses as much as digits as its factorization.

22121034232331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713501.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 22121034232331 its reverse (13323243012122), we get a palindrome (35444277244453).

The spelling of 22121034232331 in words is "twenty-two trillion, one hundred twenty-one billion, thirty-four million, two hundred thirty-two thousand, three hundred thirty-one".