3221222002 has 4 divisors (see below), whose sum is σ = 4831833006. Its totient is φ = 1610611000.

The previous prime is 3221221973. The next prime is 3221222027. The reversal of 3221222002 is 2002221223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2438285641 + 782936361 = 49379^2 + 27981^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805305499 + ... + 805305502.

Almost surely, 2^3221222002 is an apocalyptic number.

3221222002 is a deficient number, since it is larger than the sum of its proper divisors (1610611004).

3221222002 is a wasteful number, since it uses less digits than its factorization.

3221222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610611003.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3221222002 is about 56755.8102928678. The cubic root of 3221222002 is about 1476.8630296875.

Adding to 3221222002 its reverse (2002221223), we get a palindrome (5223443225).

The spelling of 3221222002 in words is "three billion, two hundred twenty-one million, two hundred twenty-two thousand, two".