22002031021331 has 16 divisors (see below), whose sum is σ = 22884600877440. Its totient is φ = 21134659553280.

The previous prime is 22002031021309. The next prime is 22002031021339. The reversal of 22002031021331 is 13312013020022.

It is a cyclic number.

It is not a de Polignac number, because 22002031021331 - 2⁴² = 17603984510227 is a prime.

It is a super-2 number, since 2×22002031021331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22002031021339) 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, 35873891 + ... + 36482051.

It is an arithmetic number, because the mean of its divisors is an integer number (1430287554840).

Almost surely, 2^{22002031021331} is an apocalyptic number.

22002031021331 is a deficient number, since it is larger than the sum of its proper divisors (882569856109).

22002031021331 is a wasteful number, since it uses less digits than its factorization.

22002031021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620654.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22002031021331 its reverse (13312013020022), we get a palindrome (35314044041353).

The spelling of 22002031021331 in words is "twenty-two trillion, two billion, thirty-one million, twenty-one thousand, three hundred thirty-one".