20102020122101 has 4 divisors (see below), whose sum is σ = 20103233515872. Its totient is φ = 20100806728332.

The previous prime is 20102020122089. The next prime is 20102020122133. The reversal of 20102020122101 is 10122102020102.

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 20102020122101 - 2²² = 20102015927797 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 (20102020112101) 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, 606672035 + ... + 606705168.

It is an arithmetic number, because the mean of its divisors is an integer number (5025808378968).

Almost surely, 2^{20102020122101} is an apocalyptic number.

It is an amenable number.

20102020122101 is a deficient number, since it is larger than the sum of its proper divisors (1213393771).

20102020122101 is a wasteful number, since it uses less digits than its factorization.

20102020122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213393770.

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

Adding to 20102020122101 its reverse (10122102020102), we get a palindrome (30224122142203).

The spelling of 20102020122101 in words is "twenty trillion, one hundred two billion, twenty million, one hundred twenty-two thousand, one hundred one".