22129890744 has 64 divisors (see below), whose sum is σ = 59594774400. Its totient is φ = 6807563136.

The previous prime is 22129890737. The next prime is 22129890779. The reversal of 22129890744 is 44709892122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22129890693 and 22129890702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2267427 + ... + 2277165.

It is an arithmetic number, because the mean of its divisors is an integer number (931168350).

Almost surely, 2^22129890744 is an apocalyptic number.

22129890744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22129890744 is an abundant number, since it is smaller than the sum of its proper divisors (37464883656).

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

22129890744 is a wasteful number, since it uses less digits than its factorization.

22129890744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17044 (or 17040 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 22129890744 in words is "twenty-two billion, one hundred twenty-nine million, eight hundred ninety thousand, seven hundred forty-four".