7202221566 has 16 divisors (see below), whose sum is σ = 14640582288. Its totient is φ = 2361384000.

The previous prime is 7202221561. The next prime is 7202221571. The reversal of 7202221566 is 6651222027.

It is an interprime number because it is at equal distance from previous prime (7202221561) and next prime (7202221571).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7202221561) 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, 9838735 + ... + 9839466.

It is an arithmetic number, because the mean of its divisors is an integer number (915036393).

Almost surely, 2^7202221566 is an apocalyptic number.

7202221566 is an abundant number, since it is smaller than the sum of its proper divisors (7438360722).

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

7202221566 is a wasteful number, since it uses less digits than its factorization.

7202221566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19678267.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 7202221566 is about 84865.9034359501. The cubic root of 7202221566 is about 1931.1773504913.

The spelling of 7202221566 in words is "seven billion, two hundred two million, two hundred twenty-one thousand, five hundred sixty-six".