210011102020 has 96 divisors (see below), whose sum is σ = 455845017600. Its totient is φ = 81239393664.

The previous prime is 210011101981. The next prime is 210011102051. The reversal of 210011102020 is 20201110012.

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

It is a junction number, because it is equal to n+sod(n) for n = 210011101988 and 210011102006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18943399 + ... + 18954481.

It is an arithmetic number, because the mean of its divisors is an integer number (4748385600).

Almost surely, 2^210011102020 is an apocalyptic number.

210011102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210011102020 is an abundant number, since it is smaller than the sum of its proper divisors (245833915580).

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

210011102020 is a wasteful number, since it uses less digits than its factorization.

210011102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11417 (or 11415 counting only the distinct ones).

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

Adding to 210011102020 its reverse (20201110012), we get a palindrome (230212212032).

The spelling of 210011102020 in words is "two hundred ten billion, eleven million, one hundred two thousand, twenty".