222120122100211 has 4 divisors (see below), whose sum is σ = 224085786897672. Its totient is φ = 220154457302752.

The previous prime is 222120122100197. The next prime is 222120122100229. The reversal of 222120122100211 is 112001221021222.

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 222120122100211 - 2⁵ = 222120122100179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222120122100251) 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, 982832398561 + ... + 982832398786.

It is an arithmetic number, because the mean of its divisors is an integer number (56021446724418).

Almost surely, 2^{222120122100211} is an apocalyptic number.

222120122100211 is a deficient number, since it is larger than the sum of its proper divisors (1965664797461).

222120122100211 is a wasteful number, since it uses less digits than its factorization.

222120122100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965664797460.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222120122100211 its reverse (112001221021222), we get a palindrome (334121343121433).

The spelling of 222120122100211 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred twenty-two million, one hundred thousand, two hundred eleven".