7221435872215 has 32 divisors (see below), whose sum is σ = 9334750334976. Its totient is φ = 5347388513280.

The previous prime is 7221435872213. The next prime is 7221435872269. The reversal of 7221435872215 is 5122785341227.

It is not a de Polignac number, because 7221435872215 - 2¹ = 7221435872213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7221435872213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70403847 + ... + 70506343.

It is an arithmetic number, because the mean of its divisors is an integer number (291710947968).

Almost surely, 2^{7221435872215} is an apocalyptic number.

7221435872215 is a deficient number, since it is larger than the sum of its proper divisors (2113314462761).

7221435872215 is a wasteful number, since it uses less digits than its factorization.

7221435872215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122319.

The product of its digits is 1881600, while the sum is 49.

The spelling of 7221435872215 in words is "seven trillion, two hundred twenty-one billion, four hundred thirty-five million, eight hundred seventy-two thousand, two hundred fifteen".