220223222321989 has 2 divisors, whose sum is σ = 220223222321990. Its totient is φ = 220223222321988.

The previous prime is 220223222321983. The next prime is 220223222322041. The reversal of 220223222321989 is 989123222322022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120732671816964 + 99490550505025 = 10987842^2 + 9974495^2 .

It is a cyclic number.

It is not a de Polignac number, because 220223222321989 - 2³ = 220223222321981 is a prime.

It is a super-2 number, since 2×220223222321989² (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 (220223222321981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111611160994 + 110111611160995.

It is an arithmetic number, because the mean of its divisors is an integer number (110111611160995).

Almost surely, 2^{220223222321989} is an apocalyptic number.

It is an amenable number.

220223222321989 is a deficient number, since it is larger than the sum of its proper divisors (1).

220223222321989 is an equidigital number, since it uses as much as digits as its factorization.

220223222321989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 220223222321989 in words is "two hundred twenty trillion, two hundred twenty-three billion, two hundred twenty-two million, three hundred twenty-one thousand, nine hundred eighty-nine".