12210031357 has 2 divisors, whose sum is σ = 12210031358. Its totient is φ = 12210031356.

The previous prime is 12210031271. The next prime is 12210031373. The reversal of 12210031357 is 75313001221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8162399716 + 4047631641 = 90346^2 + 63621^2 .

It is a cyclic number.

It is not a de Polignac number, because 12210031357 - 2¹¹ = 12210029309 is a prime.

It is a super-2 number, since 2×12210031357² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12210041357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105015678 + 6105015679.

It is an arithmetic number, because the mean of its divisors is an integer number (6105015679).

Almost surely, 2^12210031357 is an apocalyptic number.

It is an amenable number.

12210031357 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210031357 is an equidigital number, since it uses as much as digits as its factorization.

12210031357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 12210031357 its reverse (75313001221), we get a palindrome (87523032578).

The spelling of 12210031357 in words is "twelve billion, two hundred ten million, thirty-one thousand, three hundred fifty-seven".