3221102100 has 72 divisors (see below), whose sum is σ = 9412085088. Its totient is φ = 850448000.

The previous prime is 3221102057. The next prime is 3221102107. The reversal of 3221102100 is 12011223.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221102107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22854 + ... + 83453.

It is an arithmetic number, because the mean of its divisors is an integer number (130723404).

Almost surely, 2^3221102100 is an apocalyptic number.

3221102100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3221102100 is an abundant number, since it is smaller than the sum of its proper divisors (6190982988).

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

3221102100 is a wasteful number, since it uses less digits than its factorization.

3221102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106425 (or 106418 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3221102100 is about 56754.7539858997. The cubic root of 3221102100 is about 1476.8447052723.

Adding to 3221102100 its reverse (12011223), we get a palindrome (3233113323).

The spelling of 3221102100 in words is "three billion, two hundred twenty-one million, one hundred two thousand, one hundred".