172224100222412 has 48 divisors (see below), whose sum is σ = 348669267787008. Its totient is φ = 72909790132800.

The previous prime is 172224100222411. The next prime is 172224100222441. The reversal of 172224100222412 is 214222001422271.

It is a super-2 number, since 2×172224100222412² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172224100222411) 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, 81791339 + ... + 83870562.

It is an arithmetic number, because the mean of its divisors is an integer number (7263943078896).

Almost surely, 2^{172224100222412} is an apocalyptic number.

It is an amenable number.

172224100222412 is an abundant number, since it is smaller than the sum of its proper divisors (176445167564596).

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

172224100222412 is a wasteful number, since it uses less digits than its factorization.

172224100222412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165662366 (or 165662364 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

Adding to 172224100222412 its reverse (214222001422271), we get a palindrome (386446101644683).

The spelling of 172224100222412 in words is "one hundred seventy-two trillion, two hundred twenty-four billion, one hundred million, two hundred twenty-two thousand, four hundred twelve".