3121222002 has 8 divisors (see below), whose sum is σ = 6242444016. Its totient is φ = 1040407332.

The previous prime is 3121221997. The next prime is 3121222003. The reversal of 3121222002 is 2002221213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

3121222002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3121222003) 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 3 ways as a sum of consecutive naturals, for example, 260101828 + ... + 260101839.

It is an arithmetic number, because the mean of its divisors is an integer number (780305502).

Almost surely, 2^3121222002 is an apocalyptic number.

3121222002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3121222002 is a wasteful number, since it uses less digits than its factorization.

3121222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520203672.

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

The square root of 3121222002 is about 55867.8977768092. The cubic root of 3121222002 is about 1461.4194617505.

Adding to 3121222002 its reverse (2002221213), we get a palindrome (5123443215).

The spelling of 3121222002 in words is "three billion, one hundred twenty-one million, two hundred twenty-two thousand, two".