2112122220113 has 2 divisors, whose sum is σ = 2112122220114. Its totient is φ = 2112122220112.

The previous prime is 2112122220073. The next prime is 2112122220149. The reversal of 2112122220113 is 3110222212112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1253519834449 + 858602385664 = 1119607^2 + 926608^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112122220113 - 2²⁸ = 2111853784657 is a prime.

It is a super-2 number, since 2×2112122220113² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2112122220193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056061110056 + 1056061110057.

It is an arithmetic number, because the mean of its divisors is an integer number (1056061110057).

Almost surely, 2^{2112122220113} is an apocalyptic number.

It is an amenable number.

2112122220113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112122220113 is an equidigital number, since it uses as much as digits as its factorization.

2112122220113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2112122220113 its reverse (3110222212112), we get a palindrome (5222344432225).

The spelling of 2112122220113 in words is "two trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twenty thousand, one hundred thirteen".