222112222202021 has 16 divisors (see below), whose sum is σ = 235737053323200. Its totient is φ = 208550005896960.

The previous prime is 222112222202009. The next prime is 222112222202041. The reversal of 222112222202021 is 120202222211222.

It is a cyclic number.

It is not a de Polignac number, because 222112222202021 - 2¹⁰ = 222112222200997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112222202041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8338130 + ... + 22666028.

It is an arithmetic number, because the mean of its divisors is an integer number (14733565832700).

Almost surely, 2^{222112222202021} is an apocalyptic number.

It is an amenable number.

222112222202021 is a deficient number, since it is larger than the sum of its proper divisors (13624831121179).

222112222202021 is a wasteful number, since it uses less digits than its factorization.

222112222202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14330084.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222112222202021 its reverse (120202222211222), we get a palindrome (342314444413243).

The spelling of 222112222202021 in words is "two hundred twenty-two trillion, one hundred twelve billion, two hundred twenty-two million, two hundred two thousand, twenty-one".