122201166 has 16 divisors (see below), whose sum is σ = 248050944. Its totient is φ = 40125624.

The previous prime is 122201143. The next prime is 122201173. The reversal of 122201166 is 661102221.

It is a congruent number.

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, 151590 + ... + 152393.

It is an arithmetic number, because the mean of its divisors is an integer number (15503184).

Almost surely, 2^122201166 is an apocalyptic number.

122201166 is an abundant number, since it is smaller than the sum of its proper divisors (125849778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122201166 is a wasteful number, since it uses less digits than its factorization.

122201166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304055.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 122201166 is about 11054.4636233514. The cubic root of 122201166 is about 496.2400172686.

Adding to 122201166 its reverse (661102221), we get a palindrome (783303387).

The spelling of 122201166 in words is "one hundred twenty-two million, two hundred one thousand, one hundred sixty-six".