212223234012 has 48 divisors (see below), whose sum is σ = 497660419872. Its totient is φ = 70388305920.

The previous prime is 212223233987. The next prime is 212223234089. The reversal of 212223234012 is 210432322212.

It is a super-2 number, since 2×212223234012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3477748 + ... + 3538244.

It is an arithmetic number, because the mean of its divisors is an integer number (10367925414).

Almost surely, 2^212223234012 is an apocalyptic number.

It is an amenable number.

212223234012 is an abundant number, since it is smaller than the sum of its proper divisors (285437185860).

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

212223234012 is a wasteful number, since it uses less digits than its factorization.

212223234012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61958 (or 61956 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 212223234012 its reverse (210432322212), we get a palindrome (422655556224).

The spelling of 212223234012 in words is "two hundred twelve billion, two hundred twenty-three million, two hundred thirty-four thousand, twelve".