221222101112211 has 8 divisors (see below), whose sum is σ = 294963069196224. Its totient is φ = 147481266884840.

The previous prime is 221222101112197. The next prime is 221222101112227. The reversal of 221222101112211 is 112211101222122.

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 221222101112211 - 2²⁷ = 221221966894483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221222101112611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29542245 + ... + 36265526.

It is an arithmetic number, because the mean of its divisors is an integer number (36870383649528).

Almost surely, 2^{221222101112211} is an apocalyptic number.

221222101112211 is a deficient number, since it is larger than the sum of its proper divisors (73740968084013).

221222101112211 is a wasteful number, since it uses less digits than its factorization.

221222101112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66928321.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 221222101112211 its reverse (112211101222122), we get a palindrome (333433202334333).

The spelling of 221222101112211 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, one hundred one million, one hundred twelve thousand, two hundred eleven".