1103222012100 has 144 divisors (see below), whose sum is σ = 3457869098880. Its totient is φ = 271562179200.

The previous prime is 1103222012059. The next prime is 1103222012131. The reversal of 1103222012100 is 12102223011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1103222012100.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 177816 + ... + 1496015.

Almost surely, 2^{1103222012100} is an apocalyptic number.

1103222012100 is a gapful number since it is divisible by the number (10) 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 1103222012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1728934549440).

1103222012100 is an abundant number, since it is smaller than the sum of its proper divisors (2354647086780).

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

1103222012100 is a wasteful number, since it uses less digits than its factorization.

1103222012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673887 (or 1673854 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1103222012100 its reverse (12102223011), we get a palindrome (1115324235111).

The spelling of 1103222012100 in words is "one trillion, one hundred three billion, two hundred twenty-two million, twelve thousand, one hundred".