23331221303212 has 24 divisors (see below), whose sum is σ = 41786134301520. Its totient is φ = 11394844543680.

The previous prime is 23331221303029. The next prime is 23331221303219. The reversal of 23331221303212 is 21230312213332.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23331221303219) 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, 314807239 + ... + 314881342.

It is an arithmetic number, because the mean of its divisors is an integer number (1741088929230).

Almost surely, 2^{23331221303212} is an apocalyptic number.

It is an amenable number.

23331221303212 is a deficient number, since it is larger than the sum of its proper divisors (18454912998308).

23331221303212 is a wasteful number, since it uses less digits than its factorization.

23331221303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629688801 (or 629688799 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 23331221303212 its reverse (21230312213332), we get a palindrome (44561533516544).

The spelling of 23331221303212 in words is "twenty-three trillion, three hundred thirty-one billion, two hundred twenty-one million, three hundred three thousand, two hundred twelve".