32221217947 has 2 divisors, whose sum is σ = 32221217948. Its totient is φ = 32221217946.

The previous prime is 32221217939. The next prime is 32221217957. The reversal of 32221217947 is 74971212223.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32221217947 - 2³ = 32221217939 is a prime.

It is not a weakly prime, because it can be changed into another prime (32221217957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16110608973 + 16110608974.

It is an arithmetic number, because the mean of its divisors is an integer number (16110608974).

Almost surely, 2^32221217947 is an apocalyptic number.

32221217947 is a deficient number, since it is larger than the sum of its proper divisors (1).

32221217947 is an equidigital number, since it uses as much as digits as its factorization.

32221217947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 40.

The spelling of 32221217947 in words is "thirty-two billion, two hundred twenty-one million, two hundred seventeen thousand, nine hundred forty-seven".