1201101100 has 36 divisors (see below), whose sum is σ = 2609945800. Its totient is φ = 479784960.

The previous prime is 1201101089. The next prime is 1201101127. The reversal of 1201101100 is 11011021.

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, 69091 + ... + 84709.

Almost surely, 2^1201101100 is an apocalyptic number.

1201101100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201101100 is an abundant number, since it is smaller than the sum of its proper divisors (1408844700).

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

1201101100 is a wasteful number, since it uses less digits than its factorization.

1201101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16402 (or 16395 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1201101100 is about 34656.9055167942. The cubic root of 1201101100 is about 1062.9834957512.

Adding to 1201101100 its reverse (11011021), we get a palindrome (1212112121).

The spelling of 1201101100 in words is "one billion, two hundred one million, one hundred one thousand, one hundred".