222222234557 has 4 divisors (see below), whose sum is σ = 223713659100. Its totient is φ = 220730810016.

The previous prime is 222222234467. The next prime is 222222234587. The reversal of 222222234557 is 755432222222.

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 8279908036 + 213942326521 = 90994^2 + 462539^2 .

It is a cyclic number.

It is not a de Polignac number, because 222222234557 - 2¹⁰ = 222222233533 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 222222234557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222234587) 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, 745712048 + ... + 745712345.

It is an arithmetic number, because the mean of its divisors is an integer number (55928414775).

Almost surely, 2^222222234557 is an apocalyptic number.

It is an amenable number.

222222234557 is a deficient number, since it is larger than the sum of its proper divisors (1491424543).

222222234557 is a wasteful number, since it uses less digits than its factorization.

222222234557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491424542.

The product of its digits is 268800, while the sum is 38.

Adding to 222222234557 its reverse (755432222222), we get a palindrome (977654456779).

The spelling of 222222234557 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred thirty-four thousand, five hundred fifty-seven".