12220002051121 has 2 divisors, whose sum is σ = 12220002051122. Its totient is φ = 12220002051120.

The previous prime is 12220002051113. The next prime is 12220002051151. The reversal of 12220002051121 is 12115020002221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11178457296400 + 1041544754721 = 3343420^2 + 1020561^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220002051121 - 2³ = 12220002051113 is a prime.

It is not a weakly prime, because it can be changed into another prime (12220002051151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110001025560 + 6110001025561.

It is an arithmetic number, because the mean of its divisors is an integer number (6110001025561).

Almost surely, 2^{12220002051121} is an apocalyptic number.

It is an amenable number.

12220002051121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220002051121 is an equidigital number, since it uses as much as digits as its factorization.

12220002051121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 12220002051121 its reverse (12115020002221), we get a palindrome (24335022053342).

The spelling of 12220002051121 in words is "twelve trillion, two hundred twenty billion, two million, fifty-one thousand, one hundred twenty-one".