22212043 has 12 divisors (see below), whose sum is σ = 26963280. Its totient is φ = 18210192.

The previous prime is 22212019. The next prime is 22212049. The reversal of 22212043 is 34021222.

It is a de Polignac number, because none of the positive numbers 2^k-22212043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8728 + ... + 10981.

It is an arithmetic number, because the mean of its divisors is an integer number (2246940).

Almost surely, 2^22212043 is an apocalyptic number.

22212043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22212043 is a deficient number, since it is larger than the sum of its proper divisors (4751237).

22212043 is a wasteful number, since it uses less digits than its factorization.

22212043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19746 (or 19739 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22212043 is about 4712.9654146832. The cubic root of 22212043 is about 281.1012877684.

Adding to 22212043 its reverse (34021222), we get a palindrome (56233265).

The spelling of 22212043 in words is "twenty-two million, two hundred twelve thousand, forty-three".