21091107322032 has 80 divisors (see below), whose sum is σ = 60252802347648. Its totient is φ = 6303693335040.

The previous prime is 21091107322007. The next prime is 21091107322057. The reversal of 21091107322032 is 23022370119012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21091107322007) and next prime (21091107322057).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 21091107321984 and 21091107322002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273559258 + ... + 273636345.

Almost surely, 2^{21091107322032} is an apocalyptic number.

21091107322032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21091107322032 is an abundant number, since it is smaller than the sum of its proper divisors (39161695025616).

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

21091107322032 is a wasteful number, since it uses less digits than its factorization.

21091107322032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547195698 (or 547195692 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 21091107322032 in words is "twenty-one trillion, ninety-one billion, one hundred seven million, three hundred twenty-two thousand, thirty-two".