118221722 has 12 divisors (see below), whose sum is σ = 180399786. Its totient is φ = 58105560.

The previous prime is 118221713. The next prime is 118221739. The reversal of 118221722 is 227122811.

It can be written as a sum of positive squares in only one way, i.e., 67256401 + 50965321 = 8201^2 + 7139^2 .

It is a junction number, because it is equal to n+sod(n) for n = 118221691 and 118221700.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1529 + ... + 15452.

Almost surely, 2^118221722 is an apocalyptic number.

118221722 is a deficient number, since it is larger than the sum of its proper divisors (62178064).

118221722 is an equidigital number, since it uses as much as digits as its factorization.

118221722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17101 (or 17042 counting only the distinct ones).

The product of its digits is 896, while the sum is 26.

The square root of 118221722 is about 10872.9812838982. The cubic root of 118221722 is about 490.7938291789.

The spelling of 118221722 in words is "one hundred eighteen million, two hundred twenty-one thousand, seven hundred twenty-two".