1122200100 has 108 divisors (see below), whose sum is σ = 4019992704. Its totient is φ = 256501440.

The previous prime is 1122200099. The next prime is 1122200117. The reversal of 1122200100 is 10022211.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 82764 + ... + 95363.

Almost surely, 2^1122200100 is an apocalyptic number.

1122200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122200100 is an abundant number, since it is smaller than the sum of its proper divisors (2897792604).

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

1122200100 is a wasteful number, since it uses less digits than its factorization.

1122200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178154 (or 178144 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1122200100 is about 33499.2552156014. The cubic root of 1122200100 is about 1039.1783759703.

Adding to 1122200100 its reverse (10022211), we get a palindrome (1132222311).

The spelling of 1122200100 in words is "one billion, one hundred twenty-two million, two hundred thousand, one hundred".