22129040052 has 96 divisors (see below), whose sum is σ = 65596912640. Its totient is φ = 6319749600.

The previous prime is 22129040041. The next prime is 22129040111. The reversal of 22129040052 is 25004092122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22129039998 and 22129040025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2150223 + ... + 2160489.

Almost surely, 2^22129040052 is an apocalyptic number.

It is an amenable number.

22129040052 is an abundant number, since it is smaller than the sum of its proper divisors (43467872588).

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

22129040052 is a wasteful number, since it uses less digits than its factorization.

22129040052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13138 (or 13130 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 22129040052 in words is "twenty-two billion, one hundred twenty-nine million, forty thousand, fifty-two".