3122100 has 54 divisors (see below), whose sum is σ = 9788870. Its totient is φ = 832320.

The previous prime is 3122059. The next prime is 3122107. The reversal of 3122100 is 12213.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 10404 + 3111696 = 102^2 + 1764^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 835 + ... + 2634.

Almost surely, 2^3122100 is an apocalyptic number.

3122100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3122100 is an abundant number, since it is smaller than the sum of its proper divisors (6666770).

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

3122100 is a wasteful number, since it uses less digits than its factorization.

3122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489 (or 3479 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 3122100 is about 1766.9465187153. The cubic root of 3122100 is about 146.1556481062.

Adding to 3122100 its reverse (12213), we get a palindrome (3134313).

The spelling of 3122100 in words is "three million, one hundred twenty-two thousand, one hundred".