12222172063452 has 48 divisors (see below), whose sum is σ = 31365574152192. Its totient is φ = 3680654105280.

The previous prime is 12222172063421. The next prime is 12222172063573. The reversal of 12222172063452 is 25436027122221.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 12222172063452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833474124 + ... + 833488787.

It is an arithmetic number, because the mean of its divisors is an integer number (653449461504).

Almost surely, 2^{12222172063452} is an apocalyptic number.

12222172063452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12222172063452 is an abundant number, since it is smaller than the sum of its proper divisors (19143402088740).

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

12222172063452 is a wasteful number, since it uses less digits than its factorization.

12222172063452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666962978 (or 1666962976 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

Adding to 12222172063452 its reverse (25436027122221), we get a palindrome (37658199185673).

The spelling of 12222172063452 in words is "twelve trillion, two hundred twenty-two billion, one hundred seventy-two million, sixty-three thousand, four hundred fifty-two".