223212222012 has 24 divisors (see below), whose sum is σ = 560892250576. Its totient is φ = 68680683648.

The previous prime is 223212221989. The next prime is 223212222041. The reversal of 223212222012 is 210222212322.

It is a super-3 number, since 3×223212222012³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223212222012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715423633 + ... + 715423944.

Almost surely, 2^223212222012 is an apocalyptic number.

It is an amenable number.

223212222012 is an abundant number, since it is smaller than the sum of its proper divisors (337680028564).

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

223212222012 is a wasteful number, since it uses less digits than its factorization.

223212222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430847597 (or 1430847595 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 223212222012 its reverse (210222212322), we get a palindrome (433434434334).

The spelling of 223212222012 in words is "two hundred twenty-three billion, two hundred twelve million, two hundred twenty-two thousand, twelve".