222561303545 has 64 divisors (see below), whose sum is σ = 337411547136. Its totient is φ = 137318353920.

The previous prime is 222561303541. The next prime is 222561303607. The reversal of 222561303545 is 545303165222.

It is not a de Polignac number, because 222561303545 - 2² = 222561303541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222561303499 and 222561303508.

It is not an unprimeable number, because it can be changed into a prime (222561303541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38191922 + ... + 38197748.

It is an arithmetic number, because the mean of its divisors is an integer number (5272055424).

Almost surely, 2^222561303545 is an apocalyptic number.

It is an amenable number.

222561303545 is a deficient number, since it is larger than the sum of its proper divisors (114850243591).

222561303545 is a wasteful number, since it uses less digits than its factorization.

222561303545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8670.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 222561303545 its reverse (545303165222), we get a palindrome (767864468767).

The spelling of 222561303545 in words is "two hundred twenty-two billion, five hundred sixty-one million, three hundred three thousand, five hundred forty-five".