1111100100220 has 24 divisors (see below), whose sum is σ = 2545429321008. Its totient is φ = 404036400000.

The previous prime is 1111100100197. The next prime is 1111100100223. The reversal of 1111100100220 is 220010011111.

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 = 1111100100197 and 1111100100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111100100223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2525227281 + ... + 2525227720.

It is an arithmetic number, because the mean of its divisors is an integer number (106059555042).

Almost surely, 2^{1111100100220} is an apocalyptic number.

1111100100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111100100220 is an abundant number, since it is smaller than the sum of its proper divisors (1434329220788).

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

1111100100220 is a wasteful number, since it uses less digits than its factorization.

1111100100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050455021 (or 5050455019 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1111100100220 its reverse (220010011111), we get a palindrome (1331110111331).

The spelling of 1111100100220 in words is "one trillion, one hundred eleven billion, one hundred million, one hundred thousand, two hundred twenty".