222021012443 has 4 divisors (see below), whose sum is σ = 222022912200. Its totient is φ = 222019112688.

The previous prime is 222021012439. The next prime is 222021012457. The reversal of 222021012443 is 344210120222.

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 222021012443 - 2² = 222021012439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222021015443) 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, 762218 + ... + 1012431.

It is an arithmetic number, because the mean of its divisors is an integer number (55505728050).

Almost surely, 2^222021012443 is an apocalyptic number.

222021012443 is a deficient number, since it is larger than the sum of its proper divisors (1899757).

222021012443 is a wasteful number, since it uses less digits than its factorization.

222021012443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899756.

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

Adding to 222021012443 its reverse (344210120222), we get a palindrome (566231132665).

The spelling of 222021012443 in words is "two hundred twenty-two billion, twenty-one million, twelve thousand, four hundred forty-three".