522122172 has 96 divisors (see below), whose sum is σ = 1493614080. Its totient is φ = 139687680.

The previous prime is 522122171. The next prime is 522122179. The reversal of 522122172 is 271221225.

It is a super-2 number, since 2×522122172² = 545223124987995168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522122171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32854 + ... + 46082.

It is an arithmetic number, because the mean of its divisors is an integer number (15558480).

Almost surely, 2^522122172 is an apocalyptic number.

522122172 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522122172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (746807040).

522122172 is an abundant number, since it is smaller than the sum of its proper divisors (971491908).

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

522122172 is a wasteful number, since it uses less digits than its factorization.

522122172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13283 (or 13281 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 522122172 is about 22849.9928227560. The cubic root of 522122172 is about 805.2375991933.

Adding to 522122172 its reverse (271221225), we get a palindrome (793343397).

The spelling of 522122172 in words is "five hundred twenty-two million, one hundred twenty-two thousand, one hundred seventy-two".