2021000202221 has 64 divisors (see below), whose sum is σ = 2768218123776. Its totient is φ = 1424612966400.

The previous prime is 2021000202203. The next prime is 2021000202227. The reversal of 2021000202221 is 1222020001202.

It is not a de Polignac number, because 2021000202221 - 2¹⁴ = 2021000185837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021000202196 and 2021000202205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021000202227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11384381 + ... + 11560541.

It is an arithmetic number, because the mean of its divisors is an integer number (43253408184).

Almost surely, 2^{2021000202221} is an apocalyptic number.

It is an amenable number.

2021000202221 is a deficient number, since it is larger than the sum of its proper divisors (747217921555).

2021000202221 is a wasteful number, since it uses less digits than its factorization.

2021000202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176422.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2021000202221 its reverse (1222020001202), we get a palindrome (3243020203423).

The spelling of 2021000202221 in words is "two trillion, twenty-one billion, two hundred two thousand, two hundred twenty-one".