90100202112122 has 48 divisors (see below), whose sum is σ = 143009840011752. Its totient is φ = 42567764889600.

The previous prime is 90100202112097. The next prime is 90100202112169. The reversal of 90100202112122 is 22121120200109.

It can be written as a sum of positive squares in 4 ways, for example, as 84203031840841 + 5897170271281 = 9176221^2 + 2428409^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4660425968 + ... + 4660445300.

Almost surely, 2^{90100202112122} is an apocalyptic number.

90100202112122 is a deficient number, since it is larger than the sum of its proper divisors (52909637899630).

90100202112122 is a wasteful number, since it uses less digits than its factorization.

90100202112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35871 (or 35852 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 90100202112122 in words is "ninety trillion, one hundred billion, two hundred two million, one hundred twelve thousand, one hundred twenty-two".