212232311304 has 64 divisors (see below), whose sum is σ = 571539138240. Its totient is φ = 65285740800.

The previous prime is 212232311303. The next prime is 212232311341. The reversal of 212232311304 is 403113232212.

It is a super-2 number, since 2×212232311304² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (212232311303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1179954 + ... + 1347870.

It is an arithmetic number, because the mean of its divisors is an integer number (8930299035).

Almost surely, 2^212232311304 is an apocalyptic number.

212232311304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212232311304 is an abundant number, since it is smaller than the sum of its proper divisors (359306826936).

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

212232311304 is a wasteful number, since it uses less digits than its factorization.

212232311304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171990 (or 171986 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 212232311304 its reverse (403113232212), we get a palindrome (615345543516).

The spelling of 212232311304 in words is "two hundred twelve billion, two hundred thirty-two million, three hundred eleven thousand, three hundred four".