22031040004631 has 12 divisors (see below), whose sum is σ = 25628030543808. Its totient is φ = 18883685171232.

The previous prime is 22031040004619. The next prime is 22031040004697. The reversal of 22031040004631 is 13640004013022.

It is not a de Polignac number, because 22031040004631 - 2¹⁴ = 22031039988247 is a prime.

It is a super-2 number, since 2×22031040004631² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22031040004631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031040003631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19451930 + ... + 20553336.

It is an arithmetic number, because the mean of its divisors is an integer number (2135669211984).

Almost surely, 2^{22031040004631} is an apocalyptic number.

22031040004631 is a deficient number, since it is larger than the sum of its proper divisors (3596990539177).

22031040004631 is a wasteful number, since it uses less digits than its factorization.

22031040004631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509638 (or 1509631 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 22031040004631 its reverse (13640004013022), we get a palindrome (35671044017653).

The spelling of 22031040004631 in words is "twenty-two trillion, thirty-one billion, forty million, four thousand, six hundred thirty-one".