1100120112100 has 36 divisors (see below), whose sum is σ = 2387389252864. Its totient is φ = 440024338080.

The previous prime is 1100120112059. The next prime is 1100120112101. The reversal of 1100120112100 is 12110210011.

It is a super-2 number, since 2×1100120112100² (a number of 25 digits) contains 22 as substring.

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 (1100120112101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1631557 + ... + 2205043.

Almost surely, 2^{1100120112100} is an apocalyptic number.

1100120112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100120112100 is an abundant number, since it is smaller than the sum of its proper divisors (1287269140764).

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

1100120112100 is a wasteful number, since it uses less digits than its factorization.

1100120112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592684 (or 592677 counting only the distinct ones).

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

Adding to 1100120112100 its reverse (12110210011), we get a palindrome (1112230322111).

The spelling of 1100120112100 in words is "one trillion, one hundred billion, one hundred twenty million, one hundred twelve thousand, one hundred".