3201121100 has 18 divisors (see below), whose sum is σ = 6946433004. Its totient is φ = 1280448400.

The previous prime is 3201121093. The next prime is 3201121129. The reversal of 3201121100 is 11211023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16005506 + ... + 16005705.

Almost surely, 2^3201121100 is an apocalyptic number.

It is an amenable number.

3201121100 is an abundant number, since it is smaller than the sum of its proper divisors (3745311904).

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

3201121100 is a wasteful number, since it uses less digits than its factorization.

3201121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32011225 (or 32011218 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 3201121100 is about 56578.4508448225. The cubic root of 3201121100 is about 1473.7846696845.

Adding to 3201121100 its reverse (11211023), we get a palindrome (3212332123).

The spelling of 3201121100 in words is "three billion, two hundred one million, one hundred twenty-one thousand, one hundred".