20110002102021 has 16 divisors (see below), whose sum is σ = 28876036392000. Its totient is φ = 12375327649920.

The previous prime is 20110002102013. The next prime is 20110002102049. The reversal of 20110002102021 is 12020120001102.

It is not a de Polignac number, because 20110002102021 - 2³ = 20110002102013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20110002101988 and 20110002102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110002102721) 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, 8077105 + ... + 10269353.

It is an arithmetic number, because the mean of its divisors is an integer number (1804752274500).

Almost surely, 2^{20110002102021} is an apocalyptic number.

It is an amenable number.

20110002102021 is a deficient number, since it is larger than the sum of its proper divisors (8766034289979).

20110002102021 is a wasteful number, since it uses less digits than its factorization.

20110002102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427476.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20110002102021 its reverse (12020120001102), we get a palindrome (32130122103123).

The spelling of 20110002102021 in words is "twenty trillion, one hundred ten billion, two million, one hundred two thousand, twenty-one".