222221201222 has 32 divisors (see below), whose sum is σ = 355119414624. Its totient is φ = 103929280000.

The previous prime is 222221201197. The next prime is 222221201231. The reversal of 222221201222 is 222102122222.

It is a super-2 number, since 2×222221201222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222221201194 and 222221201203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19116572 + ... + 19128192.

It is an arithmetic number, because the mean of its divisors is an integer number (11097481707).

Almost surely, 2^222221201222 is an apocalyptic number.

222221201222 is a deficient number, since it is larger than the sum of its proper divisors (132898213402).

222221201222 is a wasteful number, since it uses less digits than its factorization.

222221201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15064.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222221201222 its reverse (222102122222), we get a palindrome (444323323444).

The spelling of 222221201222 in words is "two hundred twenty-two billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-two".