7221514356 has 108 divisors (see below), whose sum is σ = 21919847040. Its totient is φ = 1996716960.

The previous prime is 7221514343. The next prime is 7221514369. The reversal of 7221514356 is 6534151227.

7221514356 is a `hidden beast` number, since 7 + 2 + 215 + 1 + 435 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (7221514343) and next prime (7221514369).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 7221514356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11346 + ... + 120713.

Almost surely, 2^7221514356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7221514356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10959923520).

7221514356 is an abundant number, since it is smaller than the sum of its proper divisors (14698332684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7221514356 is a wasteful number, since it uses less digits than its factorization.

7221514356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132114 (or 132102 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 7221514356 is about 84979.4937381955. The cubic root of 7221514356 is about 1932.9001791270.

The spelling of 7221514356 in words is "seven billion, two hundred twenty-one million, five hundred fourteen thousand, three hundred fifty-six".