12120021211210 has 16 divisors (see below), whose sum is σ = 23799314378592. Its totient is φ = 4407280440400.

The previous prime is 12120021211087. The next prime is 12120021211223. The reversal of 12120021211210 is 1211212002121.

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, 55091005396 + ... + 55091005615.

It is an arithmetic number, because the mean of its divisors is an integer number (1487457148662).

Almost surely, 2^{12120021211210} is an apocalyptic number.

12120021211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120021211210 is a deficient number, since it is larger than the sum of its proper divisors (11679293167382).

12120021211210 is a wasteful number, since it uses less digits than its factorization.

12120021211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110182011029.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12120021211210 its reverse (1211212002121), we get a palindrome (13331233213331).

The spelling of 12120021211210 in words is "twelve trillion, one hundred twenty billion, twenty-one million, two hundred eleven thousand, two hundred ten".