220222122209989 has 2 divisors, whose sum is σ = 220222122209990. Its totient is φ = 220222122209988.

The previous prime is 220222122209923. The next prime is 220222122210043. The reversal of 220222122209989 is 989902221222022.

220222122209989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140165117548225 + 80057004661764 = 11839135^2 + 8947458^2 .

It is a cyclic number.

It is not a de Polignac number, because 220222122209989 - 2⁴⁵ = 185037750121157 is a prime.

It is a super-2 number, since 2×220222122209989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220222422209989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111061104994 + 110111061104995.

It is an arithmetic number, because the mean of its divisors is an integer number (110111061104995).

Almost surely, 2^{220222122209989} is an apocalyptic number.

It is an amenable number.

220222122209989 is a deficient number, since it is larger than the sum of its proper divisors (1).

220222122209989 is an equidigital number, since it uses as much as digits as its factorization.

220222122209989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 220222122209989 in words is "two hundred twenty trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred nine thousand, nine hundred eighty-nine".