2121410422331 has 2 divisors, whose sum is σ = 2121410422332. Its totient is φ = 2121410422330.

The previous prime is 2121410422279. The next prime is 2121410422349. The reversal of 2121410422331 is 1332240141212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121410422331 is a prime.

It is a super-2 number, since 2×2121410422331² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2121410422331.

It is not a weakly prime, because it can be changed into another prime (2121410422031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060705211165 + 1060705211166.

It is an arithmetic number, because the mean of its divisors is an integer number (1060705211166).

Almost surely, 2^{2121410422331} is an apocalyptic number.

2121410422331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121410422331 is an equidigital number, since it uses as much as digits as its factorization.

2121410422331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 2121410422331 its reverse (1332240141212), we get a palindrome (3453650563543).

The spelling of 2121410422331 in words is "two trillion, one hundred twenty-one billion, four hundred ten million, four hundred twenty-two thousand, three hundred thirty-one".