2121002212037 has 2 divisors, whose sum is σ = 2121002212038. Its totient is φ = 2121002212036.

The previous prime is 2121002212009. The next prime is 2121002212073. The reversal of 2121002212037 is 7302122001212.

Together with next prime (2121002212073) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2041315132516 + 79687079521 = 1428746^2 + 282289^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121002212037 - 2³⁰ = 2119928470213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121002215037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060501106018 + 1060501106019.

It is an arithmetic number, because the mean of its divisors is an integer number (1060501106019).

Almost surely, 2^{2121002212037} is an apocalyptic number.

It is an amenable number.

2121002212037 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121002212037 is an equidigital number, since it uses as much as digits as its factorization.

2121002212037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 2121002212037 its reverse (7302122001212), we get a palindrome (9423124213249).

The spelling of 2121002212037 in words is "two trillion, one hundred twenty-one billion, two million, two hundred twelve thousand, thirty-seven".