222111110121211 has 8 divisors (see below), whose sum is σ = 224924322424320. Its totient is φ = 219297939799848.

The previous prime is 222111110121203. The next prime is 222111110121233. The reversal of 222111110121211 is 112121011111222.

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 222111110121211 - 2³ = 222111110121203 is a prime.

It is a super-2 number, since 2×222111110121211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222111110121611) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 221760 + ... + 21077746.

It is an arithmetic number, because the mean of its divisors is an integer number (28115540303040).

Almost surely, 2^{222111110121211} is an apocalyptic number.

222111110121211 is a deficient number, since it is larger than the sum of its proper divisors (2813212303109).

222111110121211 is a wasteful number, since it uses less digits than its factorization.

222111110121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20990873.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 222111110121211 its reverse (112121011111222), we get a palindrome (334232121232433).

The spelling of 222111110121211 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred ten million, one hundred twenty-one thousand, two hundred eleven".