120121132211 has 4 divisors (see below), whose sum is σ = 120124313400. Its totient is φ = 120117951024.

The previous prime is 120121132199. The next prime is 120121132247. The reversal of 120121132211 is 112231121021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120121132211 - 2²⁶ = 120054023347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120121132211.

It is not an unprimeable number, because it can be changed into a prime (120121132291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533266 + ... + 1609703.

It is an arithmetic number, because the mean of its divisors is an integer number (30031078350).

Almost surely, 2^120121132211 is an apocalyptic number.

120121132211 is a deficient number, since it is larger than the sum of its proper divisors (3181189).

120121132211 is an equidigital number, since it uses as much as digits as its factorization.

120121132211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181188.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 120121132211 its reverse (112231121021), we get a palindrome (232352253232).

The spelling of 120121132211 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred thirty-two thousand, two hundred eleven".