220111002100 has 36 divisors (see below), whose sum is σ = 521062774848. Its totient is φ = 80040364000.

The previous prime is 220111002091. The next prime is 220111002127. The reversal of 220111002100 is 1200111022.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100049356 + ... + 100051555.

It is an arithmetic number, because the mean of its divisors is an integer number (14473965968).

Almost surely, 2^220111002100 is an apocalyptic number.

220111002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220111002100 is an abundant number, since it is smaller than the sum of its proper divisors (300951772748).

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

220111002100 is a wasteful number, since it uses less digits than its factorization.

220111002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200100936 (or 200100929 counting only the distinct ones).

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

Adding to 220111002100 its reverse (1200111022), we get a palindrome (221311113122).

The spelling of 220111002100 in words is "two hundred twenty billion, one hundred eleven million, two thousand, one hundred".