21222032320986 has 32 divisors (see below), whose sum is σ = 48521232620928. Its totient is φ = 6061721534400.

The previous prime is 21222032320981. The next prime is 21222032321003. The reversal of 21222032320986 is 68902323022212.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (21222032320981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71361165 + ... + 71657936.

It is an arithmetic number, because the mean of its divisors is an integer number (1516288519404).

Almost surely, 2^{21222032320986} is an apocalyptic number.

21222032320986 is an abundant number, since it is smaller than the sum of its proper divisors (27299200299942).

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

21222032320986 is a wasteful number, since it uses less digits than its factorization.

21222032320986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143022646.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 21222032320986 in words is "twenty-one trillion, two hundred twenty-two billion, thirty-two million, three hundred twenty thousand, nine hundred eighty-six".