7221472502 has 4 divisors (see below), whose sum is σ = 10832208756. Its totient is φ = 3610736250.

The previous prime is 7221472493. The next prime is 7221472553. The reversal of 7221472502 is 2052741227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2052741227 = 2089 ⋅982643.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1805368124 + ... + 1805368127.

It is an arithmetic number, because the mean of its divisors is an integer number (2708052189).

Almost surely, 2^7221472502 is an apocalyptic number.

7221472502 is a deficient number, since it is larger than the sum of its proper divisors (3610736254).

7221472502 is a wasteful number, since it uses less digits than its factorization.

7221472502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610736253.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 7221472502 is about 84979.2474784285. The cubic root of 7221472502 is about 1932.8964449259.

The spelling of 7221472502 in words is "seven billion, two hundred twenty-one million, four hundred seventy-two thousand, five hundred two".