52120111211 has 8 divisors (see below), whose sum is σ = 60781471200. Its totient is φ = 44674380744.

The previous prime is 52120111189. The next prime is 52120111213. The reversal of 52120111211 is 11211102125.

It is not a de Polignac number, because 52120111211 - 2³⁴ = 34940242027 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 52120111211.

It is not an unprimeable number, because it can be changed into a prime (52120111213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75976496 + ... + 75977181.

It is an arithmetic number, because the mean of its divisors is an integer number (7597683900).

Almost surely, 2^52120111211 is an apocalyptic number.

52120111211 is a deficient number, since it is larger than the sum of its proper divisors (8661359989).

52120111211 is an equidigital number, since it uses as much as digits as its factorization.

52120111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151953698 (or 151953684 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 52120111211 its reverse (11211102125), we get a palindrome (63331213336).

The spelling of 52120111211 in words is "fifty-two billion, one hundred twenty million, one hundred eleven thousand, two hundred eleven".