120011200020090 has 96 divisors (see below), whose sum is σ = 318606091339536. Its totient is φ = 31331045191680.

The previous prime is 120011200020077. The next prime is 120011200020119. The reversal of 120011200020090 is 90020002110021.

It can be written as a sum of positive squares in 8 ways, for example, as 63524837241009 + 56486362779081 = 7970247^2 + 7515741^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25089079 + ... + 29487018.

Almost surely, 2^{120011200020090} is an apocalyptic number.

120011200020090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120011200020090 is an abundant number, since it is smaller than the sum of its proper divisors (198594891319446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120011200020090 is a wasteful number, since it uses less digits than its factorization.

120011200020090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54576624 (or 54576621 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 120011200020090 in words is "one hundred twenty trillion, eleven billion, two hundred million, twenty thousand, ninety".