1121033112100 has 72 divisors (see below), whose sum is σ = 2654447354496. Its totient is φ = 407547600000.

The previous prime is 1121033112083. The next prime is 1121033112137. The reversal of 1121033112100 is 12113301211.

It is a happy number.

It is a super-2 number, since 2×1121033112100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4398150 + ... + 4646050.

It is an arithmetic number, because the mean of its divisors is an integer number (36867324368).

Almost surely, 2^{1121033112100} is an apocalyptic number.

1121033112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121033112100 is an abundant number, since it is smaller than the sum of its proper divisors (1533414242396).

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

1121033112100 is a wasteful number, since it uses less digits than its factorization.

1121033112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252037 (or 252030 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1121033112100 its reverse (12113301211), we get a palindrome (1133146413311).

The spelling of 1121033112100 in words is "one trillion, one hundred twenty-one billion, thirty-three million, one hundred twelve thousand, one hundred".