3221301561 has 8 divisors (see below), whose sum is σ = 4295331744. Its totient is φ = 2147402880.

The previous prime is 3221301521. The next prime is 3221301563. The reversal of 3221301561 is 1651031223.

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

It is not a de Polignac number, because 3221301561 - 2⁶ = 3221301497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3221301563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72970 + ... + 108476.

It is an arithmetic number, because the mean of its divisors is an integer number (536916468).

Almost surely, 2^3221301561 is an apocalyptic number.

It is an amenable number.

3221301561 is a deficient number, since it is larger than the sum of its proper divisors (1074030183).

3221301561 is a wasteful number, since it uses less digits than its factorization.

3221301561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65751.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 3221301561 is about 56756.5111771328. The cubic root of 3221301561 is about 1476.8751883008.

Adding to 3221301561 its reverse (1651031223), we get a palindrome (4872332784).

The spelling of 3221301561 in words is "three billion, two hundred twenty-one million, three hundred one thousand, five hundred sixty-one".