12312226133460 has 144 divisors (see below), whose sum is σ = 40803917236992. Its totient is φ = 2980266220800.

The previous prime is 12312226133413. The next prime is 12312226133461. The reversal of 12312226133460 is 6433162221321.

12312226133460 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 2 + 2 + 2 + 613 + 34 + 6 + 0 = 666.

It is a super-2 number, since 2×12312226133460² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312226133461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3394924 + ... + 6012483.

It is an arithmetic number, because the mean of its divisors is an integer number (283360536368).

Almost surely, 2^{12312226133460} is an apocalyptic number.

12312226133460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312226133460 is an abundant number, since it is smaller than the sum of its proper divisors (28491691103532).

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

12312226133460 is a wasteful number, since it uses less digits than its factorization.

12312226133460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9408094 (or 9408089 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 12312226133460 its reverse (6433162221321), we get a palindrome (18745388354781).

The spelling of 12312226133460 in words is "twelve trillion, three hundred twelve billion, two hundred twenty-six million, one hundred thirty-three thousand, four hundred sixty".