202101220010101 has 2 divisors, whose sum is σ = 202101220010102. Its totient is φ = 202101220010100.

The previous prime is 202101220010077. The next prime is 202101220010117. The reversal of 202101220010101 is 101010022101202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129363349187601 + 72737870822500 = 11373801^2 + 8528650^2 .

It is a cyclic number.

It is not a de Polignac number, because 202101220010101 - 2⁹ = 202101220009589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202101220010171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101050610005050 + 101050610005051.

It is an arithmetic number, because the mean of its divisors is an integer number (101050610005051).

Almost surely, 2^{202101220010101} is an apocalyptic number.

It is an amenable number.

202101220010101 is a deficient number, since it is larger than the sum of its proper divisors (1).

202101220010101 is an equidigital number, since it uses as much as digits as its factorization.

202101220010101 is an evil number, because the sum of its binary digits is even.

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

Adding to 202101220010101 its reverse (101010022101202), we get a palindrome (303111242111303).

The spelling of 202101220010101 in words is "two hundred two trillion, one hundred one billion, two hundred twenty million, ten thousand, one hundred one".