222001421223 has 16 divisors (see below), whose sum is σ = 296571864960. Its totient is φ = 147716076576.

The previous prime is 222001421189. The next prime is 222001421231. The reversal of 222001421223 is 322124100222.

It is not a de Polignac number, because 222001421223 - 2²⁰ = 222000372647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222001421223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001421273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9954361 + ... + 9976637.

It is an arithmetic number, because the mean of its divisors is an integer number (18535741560).

Almost surely, 2^222001421223 is an apocalyptic number.

222001421223 is a deficient number, since it is larger than the sum of its proper divisors (74570443737).

222001421223 is a wasteful number, since it uses less digits than its factorization.

222001421223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28526.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 222001421223 its reverse (322124100222), we get a palindrome (544125521445).

The spelling of 222001421223 in words is "two hundred twenty-two billion, one million, four hundred twenty-one thousand, two hundred twenty-three".