22213442242 has 8 divisors (see below), whose sum is σ = 33342485436. Its totient is φ = 11099280432.

The previous prime is 22213442231. The next prime is 22213442263. The reversal of 22213442242 is 24224431222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22025231281 + 188210961 = 148409^2 + 13719^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22213442242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3716613 + ... + 3722584.

Almost surely, 2^22213442242 is an apocalyptic number.

22213442242 is a deficient number, since it is larger than the sum of its proper divisors (11129043194).

22213442242 is a wasteful number, since it uses less digits than its factorization.

22213442242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7440692.

The product of its digits is 12288, while the sum is 28.

Adding to 22213442242 its reverse (24224431222), we get a palindrome (46437873464).

The spelling of 22213442242 in words is "twenty-two billion, two hundred thirteen million, four hundred forty-two thousand, two hundred forty-two".