118222129 has 9 divisors (see below), whose sum is σ = 120584089. Its totient is φ = 115906180.

The previous prime is 118222073. The next prime is 118222187. The reversal of 118222129 is 921222811.

The square root of 118222129 is 10873.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-118222129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118222097 and 118222106.

It is not an unprimeable number, because it can be changed into a prime (118222529) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 902394 + ... + 902524.

Almost surely, 2^118222129 is an apocalyptic number.

118222129 is the 10873-rd square number.

118222129 is the 5437-th centered octagonal number.

It is an amenable number.

118222129 is a deficient number, since it is larger than the sum of its proper divisors (2361960).

118222129 is an frugal number, since it uses more digits than its factorization.

118222129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 214 counting only the distinct ones).

The product of its digits is 1152, while the sum is 28.

The cubic root of 118222129 is about 490.7943923942.

The spelling of 118222129 in words is "one hundred eighteen million, two hundred twenty-two thousand, one hundred twenty-nine".