120012112102100 has 36 divisors (see below), whose sum is σ = 260427972493500. Its totient is φ = 48004533461760.

The previous prime is 120012112102081. The next prime is 120012112102147. The reversal of 120012112102100 is 1201211210021.

It can be written as a sum of positive squares in 6 ways, for example, as 3636259982404 + 116375852119696 = 1906898^2 + 10787764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11921336 + ... + 19548464.

Almost surely, 2^{120012112102100} is an apocalyptic number.

120012112102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120012112102100 is an abundant number, since it is smaller than the sum of its proper divisors (140415860391400).

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

120012112102100 is a wasteful number, since it uses less digits than its factorization.

120012112102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7784492 (or 7784485 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 120012112102100 its reverse (1201211210021), we get a palindrome (121213323312121).

The spelling of 120012112102100 in words is "one hundred twenty trillion, twelve billion, one hundred twelve million, one hundred two thousand, one hundred".