3212222100 has 36 divisors (see below), whose sum is σ = 9294030144. Its totient is φ = 856592480.

The previous prime is 3212222051. The next prime is 3212222107. The reversal of 3212222100 is 12222123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3212222100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212222107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5353404 + ... + 5354003.

It is an arithmetic number, because the mean of its divisors is an integer number (258167504).

Almost surely, 2^3212222100 is an apocalyptic number.

3212222100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3212222100 is an abundant number, since it is smaller than the sum of its proper divisors (6081808044).

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

3212222100 is a wasteful number, since it uses less digits than its factorization.

3212222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10707424 (or 10707417 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 3212222100 is about 56676.4686620470. The cubic root of 3212222100 is about 1475.4863243623.

Adding to 3212222100 its reverse (12222123), we get a palindrome (3224444223).

The spelling of 3212222100 in words is "three billion, two hundred twelve million, two hundred twenty-two thousand, one hundred".