2121242010037 has 2 divisors, whose sum is σ = 2121242010038. Its totient is φ = 2121242010036.

The previous prime is 2121242010031. The next prime is 2121242010047. The reversal of 2121242010037 is 7300102421212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1731977074116 + 389264935921 = 1316046^2 + 623911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121242010037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121242009993 and 2121242010020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121242010031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060621005018 + 1060621005019.

It is an arithmetic number, because the mean of its divisors is an integer number (1060621005019).

Almost surely, 2^{2121242010037} is an apocalyptic number.

It is an amenable number.

2121242010037 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121242010037 is an equidigital number, since it uses as much as digits as its factorization.

2121242010037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 2121242010037 its reverse (7300102421212), we get a palindrome (9421344431249).

The spelling of 2121242010037 in words is "two trillion, one hundred twenty-one billion, two hundred forty-two million, ten thousand, thirty-seven".