22431402100 has 18 divisors (see below), whose sum is σ = 48676142774. Its totient is φ = 8972560800.

The previous prime is 22431401977. The next prime is 22431402137. The reversal of 22431402100 is 120413422.

It can be written as a sum of positive squares in 3 ways, for example, as 4849172496 + 17582229604 = 69636^2 + 132598^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112156911 + ... + 112157110.

Almost surely, 2^22431402100 is an apocalyptic number.

22431402100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22431402100 is an abundant number, since it is smaller than the sum of its proper divisors (26244740674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22431402100 is a wasteful number, since it uses less digits than its factorization.

22431402100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224314035 (or 224314028 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22431402100 its reverse (120413422), we get a palindrome (22551815522).

The spelling of 22431402100 in words is "twenty-two billion, four hundred thirty-one million, four hundred two thousand, one hundred".