12400224231 has 8 divisors (see below), whose sum is σ = 17103757680. Its totient is φ = 7981753472.

The previous prime is 12400224227. The next prime is 12400224241. The reversal of 12400224231 is 13242200421.

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 12400224231 - 2² = 12400224227 is a prime.

It is a super-2 number, since 2×12400224231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12400224198 and 12400224207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400224241) 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, 71265570 + ... + 71265743.

It is an arithmetic number, because the mean of its divisors is an integer number (2137969710).

Almost surely, 2^12400224231 is an apocalyptic number.

12400224231 is a deficient number, since it is larger than the sum of its proper divisors (4703533449).

12400224231 is a wasteful number, since it uses less digits than its factorization.

12400224231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142531345.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12400224231 its reverse (13242200421), we get a palindrome (25642424652).

It can be divided in two parts, 1240022 and 4231, that added together give a triangular number (1244253 = T₁₅₇₇).

The spelling of 12400224231 in words is "twelve billion, four hundred million, two hundred twenty-four thousand, two hundred thirty-one".