2110122212021 has 2 divisors, whose sum is σ = 2110122212022. Its totient is φ = 2110122212020.

The previous prime is 2110122211957. The next prime is 2110122212027. The reversal of 2110122212021 is 1202122210112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1638374400100 + 471747811921 = 1279990^2 + 686839^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110122212021 - 2⁶ = 2110122211957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2110122212027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055061106010 + 1055061106011.

It is an arithmetic number, because the mean of its divisors is an integer number (1055061106011).

Almost surely, 2^{2110122212021} is an apocalyptic number.

It is an amenable number.

2110122212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110122212021 is an equidigital number, since it uses as much as digits as its factorization.

2110122212021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2110122212021 its reverse (1202122210112), we get a palindrome (3312244422133).

The spelling of 2110122212021 in words is "two trillion, one hundred ten billion, one hundred twenty-two million, two hundred twelve thousand, twenty-one".