223201232212 has 36 divisors (see below), whose sum is σ = 462947051700. Its totient is φ = 93852804864.

The previous prime is 223201232179. The next prime is 223201232297. The reversal of 223201232212 is 212232102322.

It can be written as a sum of positive squares in 2 ways, for example, as 167128886596 + 56072345616 = 408814^2 + 236796^2 .

It is a super-3 number, since 3×223201232212³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10732837 + ... + 10753612.

It is an arithmetic number, because the mean of its divisors is an integer number (12859640325).

Almost surely, 2^223201232212 is an apocalyptic number.

It is an amenable number.

223201232212 is an abundant number, since it is smaller than the sum of its proper divisors (239745819488).

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

223201232212 is a wasteful number, since it uses less digits than its factorization.

223201232212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21486520 (or 21486511 counting only the distinct ones).

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

Adding to 223201232212 its reverse (212232102322), we get a palindrome (435433334534).

The spelling of 223201232212 in words is "two hundred twenty-three billion, two hundred one million, two hundred thirty-two thousand, two hundred twelve".