222112031221 has 8 divisors (see below), whose sum is σ = 226270437120. Its totient is φ = 217987297008.

The previous prime is 222112031203. The next prime is 222112031231. The reversal of 222112031221 is 122130211222.

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

It is a cyclic number.

It is not a de Polignac number, because 222112031221 - 2²⁹ = 221575160309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112031231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8404606 + ... + 8430991.

It is an arithmetic number, because the mean of its divisors is an integer number (28283804640).

Almost surely, 2^222112031221 is an apocalyptic number.

It is an amenable number.

222112031221 is a deficient number, since it is larger than the sum of its proper divisors (4158405899).

222112031221 is a wasteful number, since it uses less digits than its factorization.

222112031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835843.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222112031221 its reverse (122130211222), we get a palindrome (344242242443).

The spelling of 222112031221 in words is "two hundred twenty-two billion, one hundred twelve million, thirty-one thousand, two hundred twenty-one".