12120012101020 has 24 divisors (see below), whose sum is σ = 25462376074800. Its totient is φ = 4846033285632.

The previous prime is 12120012100991. The next prime is 12120012101047. The reversal of 12120012101020 is 2010121002121.

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, 123171765 + ... + 123270124.

It is an arithmetic number, because the mean of its divisors is an integer number (1060932336450).

Almost surely, 2^{12120012101020} is an apocalyptic number.

12120012101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120012101020 is an abundant number, since it is smaller than the sum of its proper divisors (13342363973780).

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

12120012101020 is a wasteful number, since it uses less digits than its factorization.

12120012101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246444357 (or 246444355 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12120012101020 its reverse (2010121002121), we get a palindrome (14130133103141).

The spelling of 12120012101020 in words is "twelve trillion, one hundred twenty billion, twelve million, one hundred one thousand, twenty".