222001142221 has 8 divisors (see below), whose sum is σ = 225148370688. Its totient is φ = 218854482000.

The previous prime is 222001142183. The next prime is 222001142261. The reversal of 222001142221 is 122241100222.

222001142221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 222001142221 - 2⁷ = 222001142093 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 (222001142261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678151 + ... + 950731.

It is an arithmetic number, because the mean of its divisors is an integer number (28143546336).

Almost surely, 2^222001142221 is an apocalyptic number.

It is an amenable number.

222001142221 is a deficient number, since it is larger than the sum of its proper divisors (3147228467).

222001142221 is a wasteful number, since it uses less digits than its factorization.

222001142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284123.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222001142221 its reverse (122241100222), we get a palindrome (344242242443).

The spelling of 222001142221 in words is "two hundred twenty-two billion, one million, one hundred forty-two thousand, two hundred twenty-one".