2021100100210 has 32 divisors (see below), whose sum is σ = 3714573582720. Its totient is φ = 791595666048.

The previous prime is 2021100100199. The next prime is 2021100100219. The reversal of 2021100100210 is 120010011202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2021100100219) 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, 10932112 + ... + 11115451.

It is an arithmetic number, because the mean of its divisors is an integer number (116080424460).

Almost surely, 2^{2021100100210} is an apocalyptic number.

2021100100210 is a deficient number, since it is larger than the sum of its proper divisors (1693473482510).

2021100100210 is a wasteful number, since it uses less digits than its factorization.

2021100100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22047762.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2021100100210 its reverse (120010011202), we get a palindrome (2141110111412).

The spelling of 2021100100210 in words is "two trillion, twenty-one billion, one hundred million, one hundred thousand, two hundred ten".