102022200121 has 2 divisors, whose sum is σ = 102022200122. Its totient is φ = 102022200120.

The previous prime is 102022200097. The next prime is 102022200191. The reversal of 102022200121 is 121002220201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76653674496 + 25368525625 = 276864^2 + 159275^2 .

It is a cyclic number.

It is not a de Polignac number, because 102022200121 - 2²³ = 102013811513 is a prime.

It is not a weakly prime, because it can be changed into another prime (102022200191) 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, 51011100060 + 51011100061.

It is an arithmetic number, because the mean of its divisors is an integer number (51011100061).

Almost surely, 2^102022200121 is an apocalyptic number.

It is an amenable number.

102022200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

102022200121 is an equidigital number, since it uses as much as digits as its factorization.

102022200121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102022200121 its reverse (121002220201), we get a palindrome (223024420322).

The spelling of 102022200121 in words is "one hundred two billion, twenty-two million, two hundred thousand, one hundred twenty-one".