1102012200 has 72 divisors (see below), whose sum is σ = 3700930350. Its totient is φ = 293869440.

The previous prime is 1102012183. The next prime is 1102012283. The reversal of 1102012200 is 22102011.

1102012200 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 909746244 + 192265956 = 30162^2 + 13866^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 304315 + ... + 307914.

Almost surely, 2^1102012200 is an apocalyptic number.

1102012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102012200 is an abundant number, since it is smaller than the sum of its proper divisors (2598918150).

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

1102012200 is a wasteful number, since it uses less digits than its factorization.

1102012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612251 (or 612239 counting only the distinct ones).

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

The square root of 1102012200 is about 33196.5690998332. The cubic root of 1102012200 is about 1032.9091726605.

Adding to 1102012200 its reverse (22102011), we get a palindrome (1124114211).

It can be divided in two parts, 11020 and 12200, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 1102012200 in words is "one billion, one hundred two million, twelve thousand, two hundred".