7212297356 has 24 divisors (see below), whose sum is σ = 13845867840. Its totient is φ = 3259998800.

The previous prime is 7212297353. The next prime is 7212297371. The reversal of 7212297356 is 6537922127.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (7212297353) 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, 449990 + ... + 465741.

It is an arithmetic number, because the mean of its divisors is an integer number (576911160).

Almost surely, 2^7212297356 is an apocalyptic number.

It is an amenable number.

7212297356 is a deficient number, since it is larger than the sum of its proper divisors (6633570484).

7212297356 is a wasteful number, since it uses less digits than its factorization.

7212297356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915925 (or 915923 counting only the distinct ones).

The product of its digits is 317520, while the sum is 44.

The square root of 7212297356 is about 84925.2456929034. The cubic root of 7212297356 is about 1932.0774926873.

The spelling of 7212297356 in words is "seven billion, two hundred twelve million, two hundred ninety-seven thousand, three hundred fifty-six".