120100009990 has 32 divisors (see below), whose sum is σ = 230698865664. Its totient is φ = 44858096640.

The previous prime is 120100009987. The next prime is 120100010047. The reversal of 120100009990 is 99900001021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2759791 + ... + 2802970.

It is an arithmetic number, because the mean of its divisors is an integer number (7209339552).

Almost surely, 2^120100009990 is an apocalyptic number.

120100009990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120100009990 is a deficient number, since it is larger than the sum of its proper divisors (110598855674).

120100009990 is a wasteful number, since it uses less digits than its factorization.

120100009990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5562912.

The product of its (nonzero) digits is 1458, while the sum is 31.

The spelling of 120100009990 in words is "one hundred twenty billion, one hundred million, nine thousand, nine hundred ninety".