222101122212211 has 4 divisors (see below), whose sum is σ = 242292133322424. Its totient is φ = 201910111102000.

The previous prime is 222101122212191. The next prime is 222101122212259. The reversal of 222101122212211 is 112212221101222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222101122212211 - 2¹³ = 222101122204019 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222101122212271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10095505555090 + ... + 10095505555111.

It is an arithmetic number, because the mean of its divisors is an integer number (60573033330606).

Almost surely, 2^{222101122212211} is an apocalyptic number.

222101122212211 is a deficient number, since it is larger than the sum of its proper divisors (20191011110213).

222101122212211 is a wasteful number, since it uses less digits than its factorization.

222101122212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20191011110212.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 222101122212211 its reverse (112212221101222), we get a palindrome (334313343313433).

The spelling of 222101122212211 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred twenty-two million, two hundred twelve thousand, two hundred eleven".