20100111000220 has 96 divisors (see below), whose sum is σ = 42690493827072. Its totient is φ = 7948836799488.

The previous prime is 20100111000097. The next prime is 20100111000329. The reversal of 20100111000220 is 2200011100102.

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 = 20100111000197 and 20100111000206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4255790779 + ... + 4255795501.

It is an arithmetic number, because the mean of its divisors is an integer number (444692644032).

Almost surely, 2^{20100111000220} is an apocalyptic number.

20100111000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100111000220 is an abundant number, since it is smaller than the sum of its proper divisors (22590382826852).

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

20100111000220 is a wasteful number, since it uses less digits than its factorization.

20100111000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811 (or 7809 counting only the distinct ones).

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

Adding to 20100111000220 its reverse (2200011100102), we get a palindrome (22300122100322).

The spelling of 20100111000220 in words is "twenty trillion, one hundred billion, one hundred eleven million, two hundred twenty", and thus it is an aban number.