11222111100 has 72 divisors (see below), whose sum is σ = 33346889968. Its totient is φ = 2911680000.

The previous prime is 11222111093. The next prime is 11222111143. The reversal of 11222111100 is 111122211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 10.

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, 494401 + ... + 516600.

Almost surely, 2^11222111100 is an apocalyptic number.

11222111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222111100 is an abundant number, since it is smaller than the sum of its proper divisors (22124778868).

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

11222111100 is a wasteful number, since it uses less digits than its factorization.

11222111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011055 (or 1011048 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11222111100 its reverse (111122211), we get a palindrome (11333233311).

It can be divided in two parts, 11222111 and 100, that added together give a palindrome (11222211).

The spelling of 11222111100 in words is "eleven billion, two hundred twenty-two million, one hundred eleven thousand, one hundred".