90100220012102 has 4 divisors (see below), whose sum is σ = 135150330018156. Its totient is φ = 45050110006050.

The previous prime is 90100220012081. The next prime is 90100220012107. The reversal of 90100220012102 is 20121002200109.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90100220012107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22525055003024 + ... + 22525055003027.

It is an arithmetic number, because the mean of its divisors is an integer number (33787582504539).

Almost surely, 2^{90100220012102} is an apocalyptic number.

90100220012102 is a deficient number, since it is larger than the sum of its proper divisors (45050110006054).

90100220012102 is a wasteful number, since it uses less digits than its factorization.

90100220012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45050110006053.

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

The spelling of 90100220012102 in words is "ninety trillion, one hundred billion, two hundred twenty million, twelve thousand, one hundred two".