12212120413 has 2 divisors, whose sum is σ = 12212120414. Its totient is φ = 12212120412.

The previous prime is 12212120387. The next prime is 12212120419. The reversal of 12212120413 is 31402121221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12127075129 + 85045284 = 110123^2 + 9222^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212120413 - 2⁵ = 12212120381 is a prime.

It is a super-2 number, since 2×12212120413² (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 (12212120419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106060206 + 6106060207.

It is an arithmetic number, because the mean of its divisors is an integer number (6106060207).

Almost surely, 2^12212120413 is an apocalyptic number.

It is an amenable number.

12212120413 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212120413 is an equidigital number, since it uses as much as digits as its factorization.

12212120413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12212120413 its reverse (31402121221), we get a palindrome (43614241634).

The spelling of 12212120413 in words is "twelve billion, two hundred twelve million, one hundred twenty thousand, four hundred thirteen".