20332221067 has 2 divisors, whose sum is σ = 20332221068. Its totient is φ = 20332221066.

The previous prime is 20332221047. The next prime is 20332221181. The reversal of 20332221067 is 76012223302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20332221067 is a prime.

It is not a weakly prime, because it can be changed into another prime (20332221047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166110533 + 10166110534.

It is an arithmetic number, because the mean of its divisors is an integer number (10166110534).

Almost surely, 2^20332221067 is an apocalyptic number.

20332221067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332221067 is an equidigital number, since it uses as much as digits as its factorization.

20332221067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 20332221067 its reverse (76012223302), we get a palindrome (96344444369).

The spelling of 20332221067 in words is "twenty billion, three hundred thirty-two million, two hundred twenty-one thousand, sixty-seven".