3122215506 has 24 divisors (see below), whose sum is σ = 6768947484. Its totient is φ = 1040100480.

The previous prime is 3122215493. The next prime is 3122215507. The reversal of 3122215506 is 6055122213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2999205225 + 123010281 = 54765^2 + 11091^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3122215506.

It is not an unprimeable number, because it can be changed into a prime (3122215507) 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, 22515 + ... + 82166.

Almost surely, 2^3122215506 is an apocalyptic number.

3122215506 is an abundant number, since it is smaller than the sum of its proper divisors (3646731978).

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

3122215506 is a wasteful number, since it uses less digits than its factorization.

3122215506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106346 (or 106343 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 3122215506 is about 55876.7886156676. The cubic root of 3122215506 is about 1461.5745048773.

Adding to 3122215506 its reverse (6055122213), we get a palindrome (9177337719).

The spelling of 3122215506 in words is "three billion, one hundred twenty-two million, two hundred fifteen thousand, five hundred six".