12221220122113 has 2 divisors, whose sum is σ = 12221220122114. Its totient is φ = 12221220122112.

The previous prime is 12221220122081. The next prime is 12221220122119. The reversal of 12221220122113 is 31122102212221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10140607162624 + 2080612959489 = 3184432^2 + 1442433^2 .

It is an emirp because it is prime and its reverse (31122102212221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12221220122113 - 2⁵ = 12221220122081 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221220122119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110610061056 + 6110610061057.

It is an arithmetic number, because the mean of its divisors is an integer number (6110610061057).

Almost surely, 2^{12221220122113} is an apocalyptic number.

It is an amenable number.

12221220122113 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221220122113 is an equidigital number, since it uses as much as digits as its factorization.

12221220122113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12221220122113 its reverse (31122102212221), we get a palindrome (43343322334334).

The spelling of 12221220122113 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty million, one hundred twenty-two thousand, one hundred thirteen".