21229325080 has 32 divisors (see below), whose sum is σ = 48142103040. Its totient is φ = 8424864000.

The previous prime is 21229325077. The next prime is 21229325099. The reversal of 21229325080 is 8052392212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2084421 + ... + 2094580.

It is an arithmetic number, because the mean of its divisors is an integer number (1504440720).

Almost surely, 2^21229325080 is an apocalyptic number.

21229325080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21229325080 is an abundant number, since it is smaller than the sum of its proper divisors (26912777960).

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

21229325080 is a wasteful number, since it uses less digits than its factorization.

21229325080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179139 (or 4179135 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 21229325080 in words is "twenty-one billion, two hundred twenty-nine million, three hundred twenty-five thousand, eighty".