2020102110221 has 16 divisors (see below), whose sum is σ = 2177687694000. Its totient is φ = 1862830821888.

The previous prime is 2020102110217. The next prime is 2020102110251. The reversal of 2020102110221 is 1220112010202.

It can be written as a sum of positive squares in 8 ways, for example, as 203035854025 + 1817066256196 = 450595^2 + 1347986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020102110221 - 2² = 2020102110217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020102110196 and 2020102110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020102110251) 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, 54126515 + ... + 54163823.

It is an arithmetic number, because the mean of its divisors is an integer number (136105480875).

Almost surely, 2^{2020102110221} is an apocalyptic number.

It is an amenable number.

2020102110221 is a deficient number, since it is larger than the sum of its proper divisors (157585583779).

2020102110221 is a wasteful number, since it uses less digits than its factorization.

2020102110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41408.

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

Adding to 2020102110221 its reverse (1220112010202), we get a palindrome (3240214120423).

The spelling of 2020102110221 in words is "two trillion, twenty billion, one hundred two million, one hundred ten thousand, two hundred twenty-one".