212212423304 has 32 divisors (see below), whose sum is σ = 454971625920. Its totient is φ = 90902037696.

The previous prime is 212212423261. The next prime is 212212423307. The reversal of 212212423304 is 403324212212.

212212423304 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212212423304² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212212423307) 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, 849854 + ... + 1070829.

It is an arithmetic number, because the mean of its divisors is an integer number (14217863310).

Almost surely, 2^212212423304 is an apocalyptic number.

It is an amenable number.

212212423304 is an abundant number, since it is smaller than the sum of its proper divisors (242759202616).

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

212212423304 is a wasteful number, since it uses less digits than its factorization.

212212423304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922669 (or 1922665 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 212212423304 its reverse (403324212212), we get a palindrome (615536635516).

The spelling of 212212423304 in words is "two hundred twelve billion, two hundred twelve million, four hundred twenty-three thousand, three hundred four".