20022121620667 has 2 divisors, whose sum is σ = 20022121620668. Its totient is φ = 20022121620666.

The previous prime is 20022121620619. The next prime is 20022121620671. The reversal of 20022121620667 is 76602612122002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20022121620667 - 2⁷ = 20022121620539 is a prime.

It is not a weakly prime, because it can be changed into another prime (20022121680667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011060810333 + 10011060810334.

It is an arithmetic number, because the mean of its divisors is an integer number (10011060810334).

Almost surely, 2^{20022121620667} is an apocalyptic number.

20022121620667 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022121620667 is an equidigital number, since it uses as much as digits as its factorization.

20022121620667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

Adding to 20022121620667 its reverse (76602612122002), we get a palindrome (96624733742669).

The spelling of 20022121620667 in words is "twenty trillion, twenty-two billion, one hundred twenty-one million, six hundred twenty thousand, six hundred sixty-seven".