222557203445 has 8 divisors (see below), whose sum is σ = 271446819000. Its totient is φ = 175126979520.

The previous prime is 222557203441. The next prime is 222557203487. The reversal of 222557203445 is 544302755222.

It can be written as a sum of positive squares in 4 ways, for example, as 27156073681 + 195401129764 = 164791^2 + 442042^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222557203445 - 2² = 222557203441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222557203441) 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 in 7 ways as a sum of consecutive naturals, for example, 364847570 + ... + 364848179.

It is an arithmetic number, because the mean of its divisors is an integer number (33930852375).

Almost surely, 2^222557203445 is an apocalyptic number.

It is an amenable number.

222557203445 is a deficient number, since it is larger than the sum of its proper divisors (48889615555).

222557203445 is an equidigital number, since it uses as much as digits as its factorization.

222557203445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729695815.

The product of its (nonzero) digits is 672000, while the sum is 41.

Adding to 222557203445 its reverse (544302755222), we get a palindrome (766859958667).

The spelling of 222557203445 in words is "two hundred twenty-two billion, five hundred fifty-seven million, two hundred three thousand, four hundred forty-five".