9399222651 has 32 divisors (see below), whose sum is σ = 16236183040. Its totient is φ = 4696890624.

The previous prime is 9399222649. The next prime is 9399222697. The reversal of 9399222651 is 1562229939.

It is a happy number.

It is not a de Polignac number, because 9399222651 - 2¹ = 9399222649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9399222651.

It is not an unprimeable number, because it can be changed into a prime (9399222611) 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, 900850 + ... + 911223.

It is an arithmetic number, because the mean of its divisors is an integer number (507380720).

Almost surely, 2^9399222651 is an apocalyptic number.

9399222651 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

9399222651 is a deficient number, since it is larger than the sum of its proper divisors (6836960389).

9399222651 is a wasteful number, since it uses less digits than its factorization.

9399222651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812115.

The product of its digits is 524880, while the sum is 48.

The square root of 9399222651 is about 96949.5881940713. The cubic root of 9399222651 is about 2110.3961170164.

The spelling of 9399222651 in words is "nine billion, three hundred ninety-nine million, two hundred twenty-two thousand, six hundred fifty-one".