13120211021200 has 60 divisors (see below), whose sum is σ = 31523174381140. Its totient is φ = 5247773498880.

The previous prime is 13120211021191. The next prime is 13120211021209. The reversal of 13120211021200 is 212011202131.

13120211021200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13120211021191) and next prime (13120211021209).

It can be written as a sum of positive squares in 6 ways, for example, as 408903975936 + 12711307045264 = 639456^2 + 3565292^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (13120211021209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5848522 + ... + 7774678.

Almost surely, 2^{13120211021200} is an apocalyptic number.

13120211021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13120211021200 is an abundant number, since it is smaller than the sum of its proper divisors (18402963359940).

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

13120211021200 is a wasteful number, since it uses less digits than its factorization.

13120211021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943204 (or 1943193 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 13120211021200 its reverse (212011202131), we get a palindrome (13332222223331).

The spelling of 13120211021200 in words is "thirteen trillion, one hundred twenty billion, two hundred eleven million, twenty-one thousand, two hundred".