222443554 has 4 divisors (see below), whose sum is σ = 333665334. Its totient is φ = 111221776.

The previous prime is 222443537. The next prime is 222443587. The reversal of 222443554 is 455344222.

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

It can be written as a sum of positive squares in only one way, i.e., 210917529 + 11526025 = 14523^2 + 3395^2 .

It is a super-2 number, since 2×222443554² = 98962269432301832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610887 + ... + 55610890.

Almost surely, 2^222443554 is an apocalyptic number.

222443554 is a deficient number, since it is larger than the sum of its proper divisors (111221780).

222443554 is a wasteful number, since it uses less digits than its factorization.

222443554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111221779.

The product of its digits is 38400, while the sum is 31.

The square root of 222443554 is about 14914.5416959423. The cubic root of 222443554 is about 605.9078908174.

Adding to 222443554 its reverse (455344222), we get a palindrome (677787776).

The spelling of 222443554 in words is "two hundred twenty-two million, four hundred forty-three thousand, five hundred fifty-four".