212052165311 has 32 divisors (see below), whose sum is σ = 266497672320. Its totient is φ = 164573392896.

The previous prime is 212052165307. The next prime is 212052165313. The reversal of 212052165311 is 113561250212.

It is a cyclic number.

It is not a de Polignac number, because 212052165311 - 2² = 212052165307 is a prime.

It is a super-2 number, since 2×212052165311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212052165313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121301 + ... + 662433.

It is an arithmetic number, because the mean of its divisors is an integer number (8328052260).

Almost surely, 2^212052165311 is an apocalyptic number.

212052165311 is a deficient number, since it is larger than the sum of its proper divisors (54445507009).

212052165311 is a wasteful number, since it uses less digits than its factorization.

212052165311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541283.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 212052165311 in words is "two hundred twelve billion, fifty-two million, one hundred sixty-five thousand, three hundred eleven".