9219722290 has 16 divisors (see below), whose sum is σ = 16622583768. Its totient is φ = 3681870336.

The previous prime is 9219722273. The next prime is 9219722333. The reversal of 9219722290 is 922279129.

It can be written as a sum of positive squares in 4 ways, for example, as 1925366641 + 7294355649 = 43879^2 + 85407^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745887 + ... + 758146.

Almost surely, 2^9219722290 is an apocalyptic number.

9219722290 is a deficient number, since it is larger than the sum of its proper divisors (7402861478).

9219722290 is a wasteful number, since it uses less digits than its factorization.

9219722290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504653.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 9219722290 is about 96019.3849699112. The cubic root of 9219722290 is about 2096.8753447198.

The spelling of 9219722290 in words is "nine billion, two hundred nineteen million, seven hundred twenty-two thousand, two hundred ninety".