1201100120120 has 32 divisors (see below), whose sum is σ = 2702521944720. Its totient is φ = 480431750400.

The previous prime is 1201100120089. The next prime is 1201100120149. The reversal of 1201100120120 is 210210011021.

It is a congruent number.

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, 2430020 + ... + 2882220.

Almost surely, 2^{1201100120120} is an apocalyptic number.

1201100120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201100120120 is an abundant number, since it is smaller than the sum of its proper divisors (1501421824600).

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

1201100120120 is a wasteful number, since it uses less digits than its factorization.

1201100120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518615 (or 518611 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1201100120120 its reverse (210210011021), we get a palindrome (1411310131141).

The spelling of 1201100120120 in words is "one trillion, two hundred one billion, one hundred million, one hundred twenty thousand, one hundred twenty".