222120112120211 has 4 divisors (see below), whose sum is σ = 225435337674312. Its totient is φ = 218804886566112.

The previous prime is 222120112120187. The next prime is 222120112120217. The reversal of 222120112120211 is 112021211021222.

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 222120112120211 - 2⁶ = 222120112120147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222120112120217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1657612776950 + ... + 1657612777083.

It is an arithmetic number, because the mean of its divisors is an integer number (56358834418578).

Almost surely, 2^{222120112120211} is an apocalyptic number.

222120112120211 is a deficient number, since it is larger than the sum of its proper divisors (3315225554101).

222120112120211 is an equidigital number, since it uses as much as digits as its factorization.

222120112120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315225554100.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222120112120211 its reverse (112021211021222), we get a palindrome (334141323141433).

The spelling of 222120112120211 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred twelve million, one hundred twenty thousand, two hundred eleven".