1111225100 has 18 divisors (see below), whose sum is σ = 2411358684. Its totient is φ = 444490000.

The previous prime is 1111225069. The next prime is 1111225109. The reversal of 1111225100 is 15221111.

It is not an unprimeable number, because it can be changed into a prime (1111225109) 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, 5556026 + ... + 5556225.

Almost surely, 2^1111225100 is an apocalyptic number.

1111225100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111225100 is an abundant number, since it is smaller than the sum of its proper divisors (1300133584).

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

1111225100 is a wasteful number, since it uses less digits than its factorization.

1111225100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11112265 (or 11112258 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 1111225100 is about 33335.0431228160. The cubic root of 1111225100 is about 1035.7795864382.

Adding to 1111225100 its reverse (15221111), we get a palindrome (1126446211).

The spelling of 1111225100 in words is "one billion, one hundred eleven million, two hundred twenty-five thousand, one hundred".