90001012202102 has 64 divisors (see below), whose sum is σ = 147176444889600. Its totient is φ = 41131312807680.

The previous prime is 90001012202099. The next prime is 90001012202113. The reversal of 90001012202102 is 20120221010009.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160562402 + ... + 161121962.

It is an arithmetic number, because the mean of its divisors is an integer number (2299631951400).

Almost surely, 2^{90001012202102} is an apocalyptic number.

90001012202102 is a deficient number, since it is larger than the sum of its proper divisors (57175432687498).

90001012202102 is a wasteful number, since it uses less digits than its factorization.

90001012202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560581.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 90001012202102 in words is "ninety trillion, one billion, twelve million, two hundred two thousand, one hundred two".