1122220111100 has 72 divisors (see below), whose sum is σ = 2656790121216. Its totient is φ = 408051000000.

The previous prime is 1122220111097. The next prime is 1122220111153. The reversal of 1122220111100 is 11110222211.

It is a super-3 number, since 3×1122220111100³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

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, 20929325 + ... + 20982875.

Almost surely, 2^{1122220111100} is an apocalyptic number.

1122220111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122220111100 is an abundant number, since it is smaller than the sum of its proper divisors (1534570010116).

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

1122220111100 is a wasteful number, since it uses less digits than its factorization.

1122220111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72627 (or 72620 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1122220111100 its reverse (11110222211), we get a palindrome (1133330333311).

The spelling of 1122220111100 in words is "one trillion, one hundred twenty-two billion, two hundred twenty million, one hundred eleven thousand, one hundred".