2199684130121 has 2 divisors, whose sum is σ = 2199684130122. Its totient is φ = 2199684130120.

The previous prime is 2199684130067. The next prime is 2199684130199. The reversal of 2199684130121 is 1210314869912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1105149690121 + 1094534440000 = 1051261^2 + 1046200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2199684130121 is a prime.

It is a super-2 number, since 2×2199684130121² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2199684136121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099842065060 + 1099842065061.

It is an arithmetic number, because the mean of its divisors is an integer number (1099842065061).

Almost surely, 2^{2199684130121} is an apocalyptic number.

It is an amenable number.

2199684130121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2199684130121 is an equidigital number, since it uses as much as digits as its factorization.

2199684130121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 2199684130121 in words is "two trillion, one hundred ninety-nine billion, six hundred eighty-four million, one hundred thirty thousand, one hundred twenty-one".