22002124431 has 16 divisors (see below), whose sum is σ = 35291628800. Its totient is φ = 11910924288.

The previous prime is 22002124427. The next prime is 22002124447. The reversal of 22002124431 is 13442120022.

It is not a de Polignac number, because 22002124431 - 2² = 22002124427 is a prime.

It is a super-2 number, since 2×22002124431² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22002124398 and 22002124407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002124451) 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, 27571186 + ... + 27571983.

It is an arithmetic number, because the mean of its divisors is an integer number (2205726800).

Almost surely, 2^22002124431 is an apocalyptic number.

22002124431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22002124431 is a deficient number, since it is larger than the sum of its proper divisors (13289504369).

22002124431 is a wasteful number, since it uses less digits than its factorization.

22002124431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55143198.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22002124431 its reverse (13442120022), we get a palindrome (35444244453).

The spelling of 22002124431 in words is "twenty-two billion, two million, one hundred twenty-four thousand, four hundred thirty-one".