222222580369 has 4 divisors (see below), whose sum is σ = 222272044596. Its totient is φ = 222173116144.

The previous prime is 222222580331. The next prime is 222222580387. The reversal of 222222580369 is 963085222222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 166046470144 + 56176110225 = 407488^2 + 237015^2 .

It is a cyclic number.

It is not a de Polignac number, because 222222580369 - 2⁷ = 222222580241 is a prime.

It is a super-2 number, since 2×222222580369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222222580399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24725374 + ... + 24734359.

It is an arithmetic number, because the mean of its divisors is an integer number (55568011149).

Almost surely, 2^222222580369 is an apocalyptic number.

It is an amenable number.

222222580369 is a deficient number, since it is larger than the sum of its proper divisors (49464227).

222222580369 is an equidigital number, since it uses as much as digits as its factorization.

222222580369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49464226.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 222222580369 in words is "two hundred twenty-two billion, two hundred twenty-two million, five hundred eighty thousand, three hundred sixty-nine".