2167211252 has 12 divisors (see below), whose sum is σ = 3792989760. Its totient is φ = 1083499896.

The previous prime is 2167211243. The next prime is 2167211281. The reversal of 2167211252 is 2521127612.

It is a happy number.

It is a super-2 number, since 2×2167211252² = 9393609221590815008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36149 + ... + 75107.

It is an arithmetic number, because the mean of its divisors is an integer number (316082480).

Almost surely, 2^2167211252 is an apocalyptic number.

It is an amenable number.

2167211252 is a deficient number, since it is larger than the sum of its proper divisors (1625778508).

2167211252 is a wasteful number, since it uses less digits than its factorization.

2167211252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52870 (or 52868 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 2167211252 is about 46553.3162298885. The cubic root of 2167211252 is about 1294.0977505074.

Adding to 2167211252 its reverse (2521127612), we get a palindrome (4688338864).

The spelling of 2167211252 in words is "two billion, one hundred sixty-seven million, two hundred eleven thousand, two hundred fifty-two".