12000002102120 has 64 divisors (see below), whose sum is σ = 27370906575120. Its totient is φ = 4734067728384.

The previous prime is 12000002102111. The next prime is 12000002102177. The reversal of 12000002102120 is 2120120000021.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6354160396516 + 5645841705604 = 2520746^2 + 2376098^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97983644 + ... + 98106036.

Almost surely, 2^{12000002102120} is an apocalyptic number.

12000002102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000002102120 is an abundant number, since it is smaller than the sum of its proper divisors (15370904473000).

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

12000002102120 is a wasteful number, since it uses less digits than its factorization.

12000002102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156054 (or 156050 counting only the distinct ones).

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

Adding to 12000002102120 its reverse (2120120000021), we get a palindrome (14120122102141).

The spelling of 12000002102120 in words is "twelve trillion, two million, one hundred two thousand, one hundred twenty".