120012211211211 has 72 divisors (see below), whose sum is σ = 191236643234000. Its totient is φ = 72470295596160.

The previous prime is 120012211211197. The next prime is 120012211211239. The reversal of 120012211211211 is 112112112210021.

It is a happy number.

120012211211211 is a `hidden beast` number, since 1 + 20 + 0 + 1 + 221 + 1 + 211 + 211 = 666.

It is not a de Polignac number, because 120012211211211 - 2³⁰ = 120011137469387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120012211211251) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 332930805 + ... + 333291081.

Almost surely, 2^{120012211211211} is an apocalyptic number.

120012211211211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120012211211211 is a deficient number, since it is larger than the sum of its proper divisors (71224432022789).

120012211211211 is a wasteful number, since it uses less digits than its factorization.

120012211211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361417 (or 361403 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 120012211211211 its reverse (112112112210021), we get a palindrome (232124323421232).

The spelling of 120012211211211 in words is "one hundred twenty trillion, twelve billion, two hundred eleven million, two hundred eleven thousand, two hundred eleven".