202100221101293 has 2 divisors, whose sum is σ = 202100221101294. Its totient is φ = 202100221101292.

The previous prime is 202100221101167. The next prime is 202100221101299. The reversal of 202100221101293 is 392101122001202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201715352238409 + 384868862884 = 14202653^2 + 620378^2 .

It is a cyclic number.

It is not a de Polignac number, because 202100221101293 - 2²² = 202100216906989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202100221101299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101050110550646 + 101050110550647.

It is an arithmetic number, because the mean of its divisors is an integer number (101050110550647).

Almost surely, 2^{202100221101293} is an apocalyptic number.

It is an amenable number.

202100221101293 is a deficient number, since it is larger than the sum of its proper divisors (1).

202100221101293 is an equidigital number, since it uses as much as digits as its factorization.

202100221101293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 202100221101293 its reverse (392101122001202), we get a palindrome (594201343102495).

The spelling of 202100221101293 in words is "two hundred two trillion, one hundred billion, two hundred twenty-one million, one hundred one thousand, two hundred ninety-three".