15120206212 has 12 divisors (see below), whose sum is σ = 26722345356. Its totient is φ = 7485250400.

The previous prime is 15120206131. The next prime is 15120206243. The reversal of 15120206212 is 21260202151.

It can be written as a sum of positive squares in 2 ways, for example, as 9616940356 + 5503265856 = 98066^2 + 74184^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18712723 + ... + 18713530.

It is an arithmetic number, because the mean of its divisors is an integer number (2226862113).

Almost surely, 2^15120206212 is an apocalyptic number.

It is an amenable number.

15120206212 is a deficient number, since it is larger than the sum of its proper divisors (11602139144).

15120206212 is a wasteful number, since it uses less digits than its factorization.

15120206212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37426358 (or 37426356 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 15120206212 its reverse (21260202151), we get a palindrome (36380408363).

The spelling of 15120206212 in words is "fifteen billion, one hundred twenty million, two hundred six thousand, two hundred twelve".