12131222293 has 2 divisors, whose sum is σ = 12131222294. Its totient is φ = 12131222292.

The previous prime is 12131222231. The next prime is 12131222309. The reversal of 12131222293 is 39222213121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8904187044 + 3227035249 = 94362^2 + 56807^2 .

It is a cyclic number.

It is not a de Polignac number, because 12131222293 - 2²⁹ = 11594351381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12131222693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065611146 + 6065611147.

It is an arithmetic number, because the mean of its divisors is an integer number (6065611147).

Almost surely, 2^12131222293 is an apocalyptic number.

It is an amenable number.

12131222293 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131222293 is an equidigital number, since it uses as much as digits as its factorization.

12131222293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The spelling of 12131222293 in words is "twelve billion, one hundred thirty-one million, two hundred twenty-two thousand, two hundred ninety-three".