120213211211 has 16 divisors (see below), whose sum is σ = 127340951808. Its totient is φ = 113244674400.

The previous prime is 120213211207. The next prime is 120213211219. The reversal of 120213211211 is 112112312021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120213211211 - 2² = 120213211207 is a prime.

It is a super-2 number, since 2×120213211211² (a number of 23 digits) contains 22 as substring.

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 120213211211.

It is not an unprimeable number, because it can be changed into a prime (120213211219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13218776 + ... + 13227866.

It is an arithmetic number, because the mean of its divisors is an integer number (7958809488).

Almost surely, 2^120213211211 is an apocalyptic number.

120213211211 is a deficient number, since it is larger than the sum of its proper divisors (7127740597).

120213211211 is an equidigital number, since it uses as much as digits as its factorization.

120213211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17762.

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

Adding to 120213211211 its reverse (112112312021), we get a palindrome (232325523232).

The spelling of 120213211211 in words is "one hundred twenty billion, two hundred thirteen million, two hundred eleven thousand, two hundred eleven".