122166201 has 16 divisors (see below), whose sum is σ = 164438208. Its totient is φ = 80673600.

The previous prime is 122166197. The next prime is 122166211. The reversal of 122166201 is 102661221.

It is not a de Polignac number, because 122166201 - 2² = 122166197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122166211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248566 + ... + 249056.

It is an arithmetic number, because the mean of its divisors is an integer number (10277388).

Almost surely, 2^122166201 is an apocalyptic number.

It is an amenable number.

122166201 is a deficient number, since it is larger than the sum of its proper divisors (42272007).

122166201 is a wasteful number, since it uses less digits than its factorization.

122166201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112.

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

The square root of 122166201 is about 11052.8820223506. The cubic root of 122166201 is about 496.1926836031.

The spelling of 122166201 in words is "one hundred twenty-two million, one hundred sixty-six thousand, two hundred one".