211233222004 has 24 divisors (see below), whose sum is σ = 422499143360. Its totient is φ = 90521516736.

The previous prime is 211233222001. The next prime is 211233222007. The reversal of 211233222004 is 400222332112.

It is an interprime number because it is at equal distance from previous prime (211233222001) and next prime (211233222007).

It is a super-2 number, since 2×211233222004² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211233222001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84784 + ... + 655480.

Almost surely, 2^211233222004 is an apocalyptic number.

It is an amenable number.

211233222004 is an abundant number, since it is smaller than the sum of its proper divisors (211265921356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211233222004 is a wasteful number, since it uses less digits than its factorization.

211233222004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583927 (or 583925 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 211233222004 its reverse (400222332112), we get a palindrome (611455554116).

The spelling of 211233222004 in words is "two hundred eleven billion, two hundred thirty-three million, two hundred twenty-two thousand, four".