7212204772 has 12 divisors (see below), whose sum is σ = 12640691196. Its totient is φ = 3600578720.

The previous prime is 7212204767. The next prime is 7212204817. The reversal of 7212204772 is 2774022127.

It can be written as a sum of positive squares in 2 ways, for example, as 3371428096 + 3840776676 = 58064^2 + 61974^2 .

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, 1377979 + ... + 1383202.

It is an arithmetic number, because the mean of its divisors is an integer number (1053390933).

Almost surely, 2^7212204772 is an apocalyptic number.

It is an amenable number.

7212204772 is a deficient number, since it is larger than the sum of its proper divisors (5428486424).

7212204772 is a wasteful number, since it uses less digits than its factorization.

7212204772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761838 (or 2761836 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 7212204772 is about 84924.7006000021. The cubic root of 7212204772 is about 1932.0692253157.

Adding to 7212204772 its reverse (2774022127), we get a palindrome (9986226899).

The spelling of 7212204772 in words is "seven billion, two hundred twelve million, two hundred four thousand, seven hundred seventy-two".