222012012211 has 4 divisors (see below), whose sum is σ = 242194922424. Its totient is φ = 201829102000.

The previous prime is 222012012181. The next prime is 222012012253. The reversal of 222012012211 is 112210210222.

It is a happy number.

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 222012012211 - 2⁷ = 222012012083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222012012281) 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, 10091455090 + ... + 10091455111.

It is an arithmetic number, because the mean of its divisors is an integer number (60548730606).

Almost surely, 2^222012012211 is an apocalyptic number.

222012012211 is a deficient number, since it is larger than the sum of its proper divisors (20182910213).

222012012211 is a wasteful number, since it uses less digits than its factorization.

222012012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20182910212.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222012012211 its reverse (112210210222), we get a palindrome (334222222433).

The spelling of 222012012211 in words is "two hundred twenty-two billion, twelve million, twelve thousand, two hundred eleven".