222222021222211 has 4 divisors (see below), whose sum is σ = 222328500391152. Its totient is φ = 222115542053272.

The previous prime is 222222021222199. The next prime is 222222021222239. The reversal of 222222021222211 is 112222120222222.

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 222222021222211 - 2¹³ = 222222021214019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222222021222011) 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, 53239581340 + ... + 53239585513.

It is an arithmetic number, because the mean of its divisors is an integer number (55582125097788).

Almost surely, 2^{222222021222211} is an apocalyptic number.

222222021222211 is a deficient number, since it is larger than the sum of its proper divisors (106479168941).

222222021222211 is a wasteful number, since it uses less digits than its factorization.

222222021222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106479168940.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 222222021222211 its reverse (112222120222222), we get a palindrome (334444141444433).

The spelling of 222222021222211 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, twenty-one million, two hundred twenty-two thousand, two hundred eleven".