12015121400210 has 16 divisors (see below), whose sum is σ = 21850179537816. Its totient is φ = 4756501667328.

The previous prime is 12015121400197. The next prime is 12015121400221. The reversal of 12015121400210 is 1200412151021.

It can be written as a sum of positive squares in 4 ways, for example, as 11508167432161 + 506953968049 = 3392369^2 + 712007^2 .

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, 6193360577 + ... + 6193362516.

Almost surely, 2^{12015121400210} is an apocalyptic number.

12015121400210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12015121400210 is a deficient number, since it is larger than the sum of its proper divisors (9835058137606).

12015121400210 is a wasteful number, since it uses less digits than its factorization.

12015121400210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12386723197.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 12015121400210 its reverse (1200412151021), we get a palindrome (13215533551231).

The spelling of 12015121400210 in words is "twelve trillion, fifteen billion, one hundred twenty-one million, four hundred thousand, two hundred ten".