7211212052 has 12 divisors (see below), whose sum is σ = 13766859456. Its totient is φ = 3277823640.

The previous prime is 7211212027. The next prime is 7211212091. The reversal of 7211212052 is 2502121127.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81945548 + ... + 81945635.

It is an arithmetic number, because the mean of its divisors is an integer number (1147238288).

Almost surely, 2^7211212052 is an apocalyptic number.

It is an amenable number.

7211212052 is a deficient number, since it is larger than the sum of its proper divisors (6555647404).

7211212052 is a wasteful number, since it uses less digits than its factorization.

7211212052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163891198 (or 163891196 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 7211212052 is about 84918.8556917720. The cubic root of 7211212052 is about 1931.9805750426.

Adding to 7211212052 its reverse (2502121127), we get a palindrome (9713333179).

The spelling of 7211212052 in words is "seven billion, two hundred eleven million, two hundred twelve thousand, fifty-two".