3201221047 has 2 divisors, whose sum is σ = 3201221048. Its totient is φ = 3201221046.

The previous prime is 3201221011. The next prime is 3201221069. The reversal of 3201221047 is 7401221023.

It is an a-pointer prime, because the next prime (3201221069) can be obtained adding 3201221047 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3201221047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3201221077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600610523 + 1600610524.

It is an arithmetic number, because the mean of its divisors is an integer number (1600610524).

Almost surely, 2^3201221047 is an apocalyptic number.

3201221047 is a deficient number, since it is larger than the sum of its proper divisors (1).

3201221047 is an equidigital number, since it uses as much as digits as its factorization.

3201221047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 3201221047 is about 56579.3340982377. The cubic root of 3201221047 is about 1473.8000079383.

The spelling of 3201221047 in words is "three billion, two hundred one million, two hundred twenty-one thousand, forty-seven".