120101009990 has 32 divisors (see below), whose sum is σ = 232865720640. Its totient is φ = 44334601344.

The previous prime is 120101009957. The next prime is 120101010013. The reversal of 120101009990 is 99900101021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460391 + ... + 672429.

It is an arithmetic number, because the mean of its divisors is an integer number (7277053770).

Almost surely, 2^120101009990 is an apocalyptic number.

120101009990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120101009990 is a deficient number, since it is larger than the sum of its proper divisors (112764710650).

120101009990 is a wasteful number, since it uses less digits than its factorization.

120101009990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216416.

The product of its (nonzero) digits is 1458, while the sum is 32.

The spelling of 120101009990 in words is "one hundred twenty billion, one hundred one million, nine thousand, nine hundred ninety".