215220554444022 has 16 divisors (see below), whose sum is σ = 430456648049712. Its totient is φ = 71737594954400.

The previous prime is 215220554443991. The next prime is 215220554444087. The reversal of 215220554444022 is 220444455022512.

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, 647285013 + ... + 647617424.

It is an arithmetic number, because the mean of its divisors is an integer number (26903540503107).

Almost surely, 2^{215220554444022} is an apocalyptic number.

215220554444022 is an abundant number, since it is smaller than the sum of its proper divisors (215236093605690).

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

215220554444022 is a wasteful number, since it uses less digits than its factorization.

215220554444022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294930143.

The product of its (nonzero) digits is 1024000, while the sum is 42.

The spelling of 215220554444022 in words is "two hundred fifteen trillion, two hundred twenty billion, five hundred fifty-four million, four hundred forty-four thousand, twenty-two".