220100111001100 has 144 divisors (see below), whose sum is σ = 526052230502400. Its totient is φ = 79269673824000.

The previous prime is 220100111001013. The next prime is 220100111001103. The reversal of 220100111001100 is 1100111001022.

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

It is not an unprimeable number, because it can be changed into a prime (220100111001103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45825571 + ... + 50400229.

It is an arithmetic number, because the mean of its divisors is an integer number (3653140489600).

Almost surely, 2^{220100111001100} is an apocalyptic number.

220100111001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220100111001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263026115251200).

220100111001100 is an abundant number, since it is smaller than the sum of its proper divisors (305952119501300).

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

220100111001100 is a wasteful number, since it uses less digits than its factorization.

220100111001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4575104 (or 4575097 counting only the distinct ones).

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

Adding to 220100111001100 its reverse (1100111001022), we get a palindrome (221200222002122).

The spelling of 220100111001100 in words is "two hundred twenty trillion, one hundred billion, one hundred eleven million, one thousand, one hundred".