23330221212 has 96 divisors (see below), whose sum is σ = 58310461440. Its totient is φ = 7242459840.

The previous prime is 23330221207. The next prime is 23330221217. The reversal of 23330221212 is 21212203332.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23330221207) and next prime (23330221217).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23330221217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3925339 + ... + 3931277.

It is an arithmetic number, because the mean of its divisors is an integer number (607400640).

Almost surely, 2^23330221212 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 23330221212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29155230720).

23330221212 is an abundant number, since it is smaller than the sum of its proper divisors (34980240228).

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

23330221212 is a wasteful number, since it uses less digits than its factorization.

23330221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6343 (or 6341 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23330221212 its reverse (21212203332), we get a palindrome (44542424544).

The spelling of 23330221212 in words is "twenty-three billion, three hundred thirty million, two hundred twenty-one thousand, two hundred twelve".