90022013221 has 8 divisors (see below), whose sum is σ = 102928186944. Its totient is φ = 77127311040.

The previous prime is 90022013149. The next prime is 90022013239. The reversal of 90022013221 is 12231022009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90022013221 - 2¹⁹ = 90021488933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90022013192 and 90022013201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90022013261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2851060 + ... + 2882461.

It is an arithmetic number, because the mean of its divisors is an integer number (12866023368).

Almost surely, 2^90022013221 is an apocalyptic number.

It is an amenable number.

90022013221 is a deficient number, since it is larger than the sum of its proper divisors (12906173723).

90022013221 is a wasteful number, since it uses less digits than its factorization.

90022013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5735771.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 90022013221 in words is "ninety billion, twenty-two million, thirteen thousand, two hundred twenty-one".