222001021211222 has 16 divisors (see below), whose sum is σ = 363287213730000. Its totient is φ = 100905995267040.

The previous prime is 222001021211209. The next prime is 222001021211269. The reversal of 222001021211222 is 222112120100222.

It is a junction number, because it is equal to n+sod(n) for n = 222001021211194 and 222001021211203.

It is a congruent number.

It is an unprimeable number.

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, 177353597 + ... + 178600952.

It is an arithmetic number, because the mean of its divisors is an integer number (22705450858125).

Almost surely, 2^{222001021211222} is an apocalyptic number.

222001021211222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222001021211222 is a deficient number, since it is larger than the sum of its proper divisors (141286192518778).

222001021211222 is a wasteful number, since it uses less digits than its factorization.

222001021211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355982911.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222001021211222 its reverse (222112120100222), we get a palindrome (444113141311444).

The spelling of 222001021211222 in words is "two hundred twenty-two trillion, one billion, twenty-one million, two hundred eleven thousand, two hundred twenty-two".