2021000220208 has 20 divisors (see below), whose sum is σ = 3915745690968. Its totient is φ = 1010485203200.

The previous prime is 2021000220157. The next prime is 2021000220209. The reversal of 2021000220208 is 8020220001202.

It is not an unprimeable number, because it can be changed into a prime (2021000220209) 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, 230760 + ... + 2023672.

Almost surely, 2^{2021000220208} is an apocalyptic number.

It is an amenable number.

2021000220208 is a deficient number, since it is larger than the sum of its proper divisors (1894745470760).

2021000220208 is a wasteful number, since it uses less digits than its factorization.

2021000220208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863372 (or 1863366 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The spelling of 2021000220208 in words is "two trillion, twenty-one billion, two hundred twenty thousand, two hundred eight".