20202101022101 has 16 divisors (see below), whose sum is σ = 21523159607040. Its totient is φ = 18895835669760.

The previous prime is 20202101022031. The next prime is 20202101022167. The reversal of 20202101022101 is 10122010120202.

It is a de Polignac number, because none of the positive numbers 2^k-20202101022101 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 (20202101022401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12523271 + ... + 14044091.

It is an arithmetic number, because the mean of its divisors is an integer number (1345197475440).

Almost surely, 2^{20202101022101} is an apocalyptic number.

It is an amenable number.

20202101022101 is a deficient number, since it is larger than the sum of its proper divisors (1321058584939).

20202101022101 is a wasteful number, since it uses less digits than its factorization.

20202101022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525684.

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

Adding to 20202101022101 its reverse (10122010120202), we get a palindrome (30324111142303).

The spelling of 20202101022101 in words is "twenty trillion, two hundred two billion, one hundred one million, twenty-two thousand, one hundred one".