122171961 has 8 divisors (see below), whose sum is σ = 168150784. Its totient is φ = 78820560.

The previous prime is 122171953. The next prime is 122171963. The reversal of 122171961 is 169171221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122171961 - 2³ = 122171953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122171963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656746 + ... + 656931.

It is an arithmetic number, because the mean of its divisors is an integer number (21018848).

Almost surely, 2^122171961 is an apocalyptic number.

It is an amenable number.

122171961 is a deficient number, since it is larger than the sum of its proper divisors (45978823).

122171961 is a wasteful number, since it uses less digits than its factorization.

122171961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313711.

The product of its digits is 1512, while the sum is 30.

The square root of 122171961 is about 11053.1425848037. The cubic root of 122171961 is about 496.2004817909.

The spelling of 122171961 in words is "one hundred twenty-two million, one hundred seventy-one thousand, nine hundred sixty-one".