1000120009990 has 32 divisors (see below), whose sum is σ = 1835828064000. Its totient is φ = 392171993568.

The previous prime is 1000120009979. The next prime is 1000120010009. The reversal of 1000120009990 is 999000210001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2149080 + ... + 2572699.

It is an arithmetic number, because the mean of its divisors is an integer number (57369627000).

Almost surely, 2^{1000120009990} is an apocalyptic number.

1000120009990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000120009990 is a deficient number, since it is larger than the sum of its proper divisors (835708054010).

1000120009990 is a wasteful number, since it uses less digits than its factorization.

1000120009990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4722204.

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

Adding to 1000120009990 its reverse (999000210001), we get a palindrome (1999120219991).

The spelling of 1000120009990 in words is "one trillion, one hundred twenty million, nine thousand, nine hundred ninety".