22212421043 has 4 divisors (see below), whose sum is σ = 22215240288. Its totient is φ = 22209601800.

The previous prime is 22212420977. The next prime is 22212421057. The reversal of 22212421043 is 34012421222.

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

It is a cyclic number.

It is not a de Polignac number, because 22212421043 - 2¹⁴ = 22212404659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212427043) 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, 1397771 + ... + 1413572.

It is an arithmetic number, because the mean of its divisors is an integer number (5553810072).

Almost surely, 2^22212421043 is an apocalyptic number.

22212421043 is a deficient number, since it is larger than the sum of its proper divisors (2819245).

22212421043 is an equidigital number, since it uses as much as digits as its factorization.

22212421043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819244.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22212421043 its reverse (34012421222), we get a palindrome (56224842265).

The spelling of 22212421043 in words is "twenty-two billion, two hundred twelve million, four hundred twenty-one thousand, forty-three".