20220220221911 has 2 divisors, whose sum is σ = 20220220221912. Its totient is φ = 20220220221910.

The previous prime is 20220220221829. The next prime is 20220220221989. The reversal of 20220220221911 is 11912202202202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20220220221911 - 2¹⁴ = 20220220205527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220220121911) 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, 10110110110955 + 10110110110956.

It is an arithmetic number, because the mean of its divisors is an integer number (10110110110956).

Almost surely, 2^{20220220221911} is an apocalyptic number.

20220220221911 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220220221911 is an equidigital number, since it uses as much as digits as its factorization.

20220220221911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 20220220221911 in words is "twenty trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty-one thousand, nine hundred eleven".