222244541 has 4 divisors (see below), whose sum is σ = 224445084. Its totient is φ = 220044000.

The previous prime is 222244537. The next prime is 222244567. The reversal of 222244541 is 145442222.

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 189640441 + 32604100 = 13771^2 + 5710^2 .

It is a cyclic number.

It is not a de Polignac number, because 222244541 - 2² = 222244537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222244541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222244531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100120 + ... + 1100321.

It is an arithmetic number, because the mean of its divisors is an integer number (56111271).

Almost surely, 2^222244541 is an apocalyptic number.

It is an amenable number.

222244541 is a deficient number, since it is larger than the sum of its proper divisors (2200543).

222244541 is a wasteful number, since it uses less digits than its factorization.

222244541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200542.

The product of its digits is 5120, while the sum is 26.

The square root of 222244541 is about 14907.8684257676. The cubic root of 222244541 is about 605.7271415539.

Adding to 222244541 its reverse (145442222), we get a palindrome (367686763).

The spelling of 222244541 in words is "two hundred twenty-two million, two hundred forty-four thousand, five hundred forty-one".