210220202020100 has 18 divisors (see below), whose sum is σ = 456177838383834. Its totient is φ = 84088080808000.

The previous prime is 210220202019937. The next prime is 210220202020151. The reversal of 210220202020100 is 1020202022012.

It can be written as a sum of positive squares in 3 ways, for example, as 72913974505024 + 137306227515076 = 8538968^2 + 11717774^2 .

It is a super-2 number, since 2×210220202020100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1051101010001 + ... + 1051101010200.

Almost surely, 2^{210220202020100} is an apocalyptic number.

210220202020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210220202020100 is an abundant number, since it is smaller than the sum of its proper divisors (245957636363734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210220202020100 is a wasteful number, since it uses less digits than its factorization.

210220202020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102202020215 (or 2102202020208 counting only the distinct ones).

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

Adding to 210220202020100 its reverse (1020202022012), we get a palindrome (211240404042112).

The spelling of 210220202020100 in words is "two hundred ten trillion, two hundred twenty billion, two hundred two million, twenty thousand, one hundred".