10210202100121 has 2 divisors, whose sum is σ = 10210202100122. Its totient is φ = 10210202100120.

The previous prime is 10210202100113. The next prime is 10210202100151. The reversal of 10210202100121 is 12100120201201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10208095290121 + 2106810000 = 3195011^2 + 45900^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210202100121 - 2³ = 10210202100113 is a prime.

It is not a weakly prime, because it can be changed into another prime (10210202100151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105101050060 + 5105101050061.

It is an arithmetic number, because the mean of its divisors is an integer number (5105101050061).

Almost surely, 2^{10210202100121} is an apocalyptic number.

It is an amenable number.

10210202100121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10210202100121 is an equidigital number, since it uses as much as digits as its factorization.

10210202100121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10210202100121 its reverse (12100120201201), we get a palindrome (22310322301322).

The spelling of 10210202100121 in words is "ten trillion, two hundred ten billion, two hundred two million, one hundred thousand, one hundred twenty-one".