1102011200 has 42 divisors (see below), whose sum is σ = 2711640246. Its totient is φ = 440803840.

The previous prime is 1102011187. The next prime is 1102011203. The reversal of 1102011200 is 21102011.

It can be written as a sum of positive squares in 3 ways, for example, as 1364224 + 1100646976 = 1168^2 + 33176^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102011203) 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, 342779 + ... + 345978.

It is an arithmetic number, because the mean of its divisors is an integer number (64562863).

Almost surely, 2^1102011200 is an apocalyptic number.

1102011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102011200 is an abundant number, since it is smaller than the sum of its proper divisors (1609629046).

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

1102011200 is an equidigital number, since it uses as much as digits as its factorization.

1102011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688779 (or 688764 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1102011200 is about 33196.5540380323. The cubic root of 1102011200 is about 1032.9088602291.

Adding to 1102011200 its reverse (21102011), we get a palindrome (1123113211).

The spelling of 1102011200 in words is "one billion, one hundred two million, eleven thousand, two hundred".