3122171442 has 96 divisors (see below), whose sum is σ = 7414046640. Its totient is φ = 943810560.

The previous prime is 3122171441. The next prime is 3122171453. The reversal of 3122171442 is 2441712213.

3122171442 is a `hidden beast` number, since 3 + 1 + 2 + 217 + 1 + 442 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 426381201 + 2695790241 = 20649^2 + 51921^2 .

It is not an unprimeable number, because it can be changed into a prime (3122171441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4102342 + ... + 4103102.

Almost surely, 2^3122171442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3122171442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3707023320).

3122171442 is an abundant number, since it is smaller than the sum of its proper divisors (4291875198).

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

3122171442 is a wasteful number, since it uses less digits than its factorization.

3122171442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068 (or 1065 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 3122171442 is about 55876.3943181734. The cubic root of 3122171442 is about 1461.5676290844.

Adding to 3122171442 its reverse (2441712213), we get a palindrome (5563883655).

The spelling of 3122171442 in words is "three billion, one hundred twenty-two million, one hundred seventy-one thousand, four hundred forty-two".