12224578157 has 8 divisors (see below), whose sum is σ = 13405727232. Its totient is φ = 11055066400.

The previous prime is 12224578151. The next prime is 12224578193. The reversal of 12224578157 is 75187542221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12224578157 - 2⁴ = 12224578141 is a prime.

It is a super-2 number, since 2×12224578157² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224578151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2907128 + ... + 2911329.

It is an arithmetic number, because the mean of its divisors is an integer number (1675715904).

Almost surely, 2^12224578157 is an apocalyptic number.

It is an amenable number.

12224578157 is a deficient number, since it is larger than the sum of its proper divisors (1181149075).

12224578157 is a wasteful number, since it uses less digits than its factorization.

12224578157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818659.

The product of its digits is 313600, while the sum is 44.

The spelling of 12224578157 in words is "twelve billion, two hundred twenty-four million, five hundred seventy-eight thousand, one hundred fifty-seven".