120021210211 has 4 divisors (see below), whose sum is σ = 137167097392. Its totient is φ = 102875323032.

The previous prime is 120021210193. The next prime is 120021210227. The reversal of 120021210211 is 112012120021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112012120021 = 241 ⋅464780581.

It is a cyclic number.

It is not a de Polignac number, because 120021210211 - 2²⁷ = 119886992483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120021210191 and 120021210200.

It is not an unprimeable number, because it can be changed into a prime (120021210271) 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, 8572943580 + ... + 8572943593.

It is an arithmetic number, because the mean of its divisors is an integer number (34291774348).

Almost surely, 2^120021210211 is an apocalyptic number.

120021210211 is a deficient number, since it is larger than the sum of its proper divisors (17145887181).

120021210211 is an equidigital number, since it uses as much as digits as its factorization.

120021210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17145887180.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120021210211 its reverse (112012120021), we get a palindrome (232033330232).

The spelling of 120021210211 in words is "one hundred twenty billion, twenty-one million, two hundred ten thousand, two hundred eleven".