1222003111100 has 18 divisors (see below), whose sum is σ = 2651746751304. Its totient is φ = 488801244400.

The previous prime is 1222003111073. The next prime is 1222003111103. The reversal of 1222003111100 is 11113002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222003111103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6110015456 + ... + 6110015655.

Almost surely, 2^{1222003111100} is an apocalyptic number.

1222003111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222003111100 is an abundant number, since it is smaller than the sum of its proper divisors (1429743640204).

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

1222003111100 is a wasteful number, since it uses less digits than its factorization.

1222003111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12220031125 (or 12220031118 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1222003111100 its reverse (11113002221), we get a palindrome (1233116113321).

The spelling of 1222003111100 in words is "one trillion, two hundred twenty-two billion, three million, one hundred eleven thousand, one hundred".