89102211021 has 6 divisors (see below), whose sum is σ = 128703193710. Its totient is φ = 59401474008.

The previous prime is 89102210999. The next prime is 89102211041. The reversal of 89102211021 is 12011220198.

It can be written as a sum of positive squares in only one way, i.e., 88967975625 + 134235396 = 298275^2 + 11586^2 .

It is not a de Polignac number, because 89102211021 - 2¹³ = 89102202829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89102211041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4950122826 + ... + 4950122843.

It is an arithmetic number, because the mean of its divisors is an integer number (21450532285).

Almost surely, 2^89102211021 is an apocalyptic number.

It is an amenable number.

89102211021 is a deficient number, since it is larger than the sum of its proper divisors (39600982689).

89102211021 is a wasteful number, since it uses less digits than its factorization.

89102211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9900245675 (or 9900245672 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The spelling of 89102211021 in words is "eighty-nine billion, one hundred two million, two hundred eleven thousand, twenty-one".