211102020100 has 36 divisors (see below), whose sum is σ = 478008405504. Its totient is φ = 80769467680.

The previous prime is 211102020089. The next prime is 211102020127. The reversal of 211102020100 is 1020201112.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45889444 + ... + 45894043.

It is an arithmetic number, because the mean of its divisors is an integer number (13278011264).

Almost surely, 2^211102020100 is an apocalyptic number.

211102020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211102020100 is an abundant number, since it is smaller than the sum of its proper divisors (266906385404).

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

211102020100 is a wasteful number, since it uses less digits than its factorization.

211102020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91783524 (or 91783517 counting only the distinct ones).

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

Adding to 211102020100 its reverse (1020201112), we get a palindrome (212122221212).

It can be divided in two parts, 21110 and 2020100, that added together give a triangular number (2041210 = T₂₀₂₀).

The spelling of 211102020100 in words is "two hundred eleven billion, one hundred two million, twenty thousand, one hundred".