1200120100004 has 24 divisors (see below), whose sum is σ = 2400571810560. Its totient is φ = 514266126336.

The previous prime is 1200120099973. The next prime is 1200120100013. The reversal of 1200120100004 is 4000010210021.

It is a super-2 number, since 2×1200120100004² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2754269 + ... + 3160100.

It is an arithmetic number, because the mean of its divisors is an integer number (100023825440).

Almost surely, 2^{1200120100004} is an apocalyptic number.

1200120100004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1200120100004 is an abundant number, since it is smaller than the sum of its proper divisors (1200451710556).

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

1200120100004 is a wasteful number, since it uses less digits than its factorization.

1200120100004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921627 (or 5921625 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1200120100004 its reverse (4000010210021), we get a palindrome (5200130310025).

The spelling of 1200120100004 in words is "one trillion, two hundred billion, one hundred twenty million, one hundred thousand, four".