122171142 has 32 divisors (see below), whose sum is σ = 258163200. Its totient is φ = 38480288.

The previous prime is 122171141. The next prime is 122171143. The reversal of 122171142 is 241171221.

It is an interprime number because it is at equal distance from previous prime (122171141) and next prime (122171143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122171141) 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, 709 + ... + 15647.

It is an arithmetic number, because the mean of its divisors is an integer number (8067600).

Almost surely, 2^122171142 is an apocalyptic number.

122171142 is an abundant number, since it is smaller than the sum of its proper divisors (135992058).

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

122171142 is a wasteful number, since it uses less digits than its factorization.

122171142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15020.

The product of its digits is 224, while the sum is 21.

The square root of 122171142 is about 11053.1055364544. The cubic root of 122171142 is about 496.1993730011.

The spelling of 122171142 in words is "one hundred twenty-two million, one hundred seventy-one thousand, one hundred forty-two".