36902212121 has 2 divisors, whose sum is σ = 36902212122. Its totient is φ = 36902212120.

The previous prime is 36902212093. The next prime is 36902212141. The reversal of 36902212121 is 12121220963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25619523721 + 11282688400 = 160061^2 + 106220^2 .

It is an emirp because it is prime and its reverse (12121220963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36902212121 - 2²² = 36898017817 is a prime.

It is not a weakly prime, because it can be changed into another prime (36902212141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18451106060 + 18451106061.

It is an arithmetic number, because the mean of its divisors is an integer number (18451106061).

Almost surely, 2^36902212121 is an apocalyptic number.

It is an amenable number.

36902212121 is a deficient number, since it is larger than the sum of its proper divisors (1).

36902212121 is an equidigital number, since it uses as much as digits as its factorization.

36902212121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 36902212121 in words is "thirty-six billion, nine hundred two million, two hundred twelve thousand, one hundred twenty-one".