202020102120101 has 4 divisors (see below), whose sum is σ = 202021062105312. Its totient is φ = 202019142134892.

The previous prime is 202020102120061. The next prime is 202020102120103. The reversal of 202020102120101 is 101021201020202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202020102120101 - 2¹⁴ = 202020102103717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202020102120103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479676875 + ... + 480097848.

It is an arithmetic number, because the mean of its divisors is an integer number (50505265526328).

Almost surely, 2^{202020102120101} is an apocalyptic number.

It is an amenable number.

202020102120101 is a deficient number, since it is larger than the sum of its proper divisors (959985211).

202020102120101 is an equidigital number, since it uses as much as digits as its factorization.

202020102120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959985210.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202020102120101 its reverse (101021201020202), we get a palindrome (303041303140303).

The spelling of 202020102120101 in words is "two hundred two trillion, twenty billion, one hundred two million, one hundred twenty thousand, one hundred one".