9237222121 has 2 divisors, whose sum is σ = 9237222122. Its totient is φ = 9237222120.

The previous prime is 9237222109. The next prime is 9237222193. The reversal of 9237222121 is 1212227329.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7406323600 + 1830898521 = 86060^2 + 42789^2 .

It is a cyclic number.

It is not a de Polignac number, because 9237222121 - 2⁵ = 9237222089 is a prime.

It is not a weakly prime, because it can be changed into another prime (9237222101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4618611060 + 4618611061.

It is an arithmetic number, because the mean of its divisors is an integer number (4618611061).

Almost surely, 2^9237222121 is an apocalyptic number.

It is an amenable number.

9237222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

9237222121 is an equidigital number, since it uses as much as digits as its factorization.

9237222121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 9237222121 is about 96110.4683216142. The cubic root of 9237222121 is about 2098.2011898562.

The spelling of 9237222121 in words is "nine billion, two hundred thirty-seven million, two hundred twenty-two thousand, one hundred twenty-one".