212220233004 has 96 divisors (see below), whose sum is σ = 546723011520. Its totient is φ = 63653990400.

The previous prime is 212220233003. The next prime is 212220233009. The reversal of 212220233004 is 400332022212.

212220233004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212220233003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8231574 + ... + 8257314.

It is an arithmetic number, because the mean of its divisors is an integer number (5695031370).

Almost surely, 2^212220233004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212220233004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273361505760).

212220233004 is an abundant number, since it is smaller than the sum of its proper divisors (334502778516).

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

212220233004 is a wasteful number, since it uses less digits than its factorization.

212220233004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27091 (or 27089 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 212220233004 its reverse (400332022212), we get a palindrome (612552255216).

The spelling of 212220233004 in words is "two hundred twelve billion, two hundred twenty million, two hundred thirty-three thousand, four".