20021201938967 has 2 divisors, whose sum is σ = 20021201938968. Its totient is φ = 20021201938966.

The previous prime is 20021201938937. The next prime is 20021201938993. The reversal of 20021201938967 is 76983910212002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20021201938967 - 2³⁴ = 20004022069783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20021201938937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010600969483 + 10010600969484.

It is an arithmetic number, because the mean of its divisors is an integer number (10010600969484).

Almost surely, 2^{20021201938967} is an apocalyptic number.

20021201938967 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021201938967 is an equidigital number, since it uses as much as digits as its factorization.

20021201938967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 20021201938967 in words is "twenty trillion, twenty-one billion, two hundred one million, nine hundred thirty-eight thousand, nine hundred sixty-seven".