1100100220120 has 32 divisors (see below), whose sum is σ = 2700245995920. Its totient is φ = 400036443520.

The previous prime is 1100100220111. The next prime is 1100100220127. The reversal of 1100100220120 is 210220010011.

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 = 1100100220097 and 1100100220106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100100220127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1250113447 + ... + 1250114326.

Almost surely, 2^{1100100220120} is an apocalyptic number.

1100100220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100100220120 is an abundant number, since it is smaller than the sum of its proper divisors (1600145775800).

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

1100100220120 is a wasteful number, since it uses less digits than its factorization.

1100100220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500227795 (or 2500227791 counting only the distinct ones).

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

Adding to 1100100220120 its reverse (210220010011), we get a palindrome (1310320230131).

The spelling of 1100100220120 in words is "one trillion, one hundred billion, one hundred million, two hundred twenty thousand, one hundred twenty".