3221420002 has 4 divisors (see below), whose sum is σ = 4832130006. Its totient is φ = 1610710000.

The previous prime is 3221419973. The next prime is 3221420011. The reversal of 3221420002 is 2000241223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2000241223 = 509 ⋅3929747.

It can be written as a sum of positive squares in only one way, i.e., 2879502921 + 341917081 = 53661^2 + 18491^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805354999 + ... + 805355002.

Almost surely, 2^3221420002 is an apocalyptic number.

3221420002 is a deficient number, since it is larger than the sum of its proper divisors (1610710004).

3221420002 is a wasteful number, since it uses less digits than its factorization.

3221420002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610710003.

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

The square root of 3221420002 is about 56757.5545808661. The cubic root of 3221420002 is about 1476.8932886894.

Adding to 3221420002 its reverse (2000241223), we get a palindrome (5221661225).

The spelling of 3221420002 in words is "three billion, two hundred twenty-one million, four hundred twenty thousand, two".