1100201200 has 60 divisors (see below), whose sum is σ = 3020845840. Its totient is φ = 377210880.

The previous prime is 1100201147. The next prime is 1100201269. The reversal of 1100201200 is 21020011.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193665 + ... + 199264.

Almost surely, 2^1100201200 is an apocalyptic number.

1100201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100201200 is an abundant number, since it is smaller than the sum of its proper divisors (1920644640).

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

1100201200 is a wasteful number, since it uses less digits than its factorization.

1100201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392954 (or 392943 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1100201200 is about 33169.2809689930. The cubic root of 1100201200 is about 1032.3430494253.

Adding to 1100201200 its reverse (21020011), we get a palindrome (1121221211).

It can be divided in two parts, 1100201 and 200, that added together give a square (1100401 = 1049²).

The spelling of 1100201200 in words is "one billion, one hundred million, two hundred one thousand, two hundred".