222122122011 has 24 divisors (see below), whose sum is σ = 326565457920. Its totient is φ = 145444686000.

The previous prime is 222122122003. The next prime is 222122122021. The reversal of 222122122011 is 110221221222.

It is a happy number.

222122122011 is a `hidden beast` number, since 2 + 221 + 221 + 220 + 1 + 1 = 666.

It is not a de Polignac number, because 222122122011 - 2³ = 222122122003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222122122021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429466 + ... + 792896.

It is an arithmetic number, because the mean of its divisors is an integer number (13606894080).

Almost surely, 2^222122122011 is an apocalyptic number.

222122122011 is a deficient number, since it is larger than the sum of its proper divisors (104443335909).

222122122011 is a wasteful number, since it uses less digits than its factorization.

222122122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364647 (or 364644 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222122122011 its reverse (110221221222), we get a palindrome (332343343233).

The spelling of 222122122011 in words is "two hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-two thousand, eleven".