23211222213012 has 24 divisors (see below), whose sum is σ = 54159884172576. Its totient is φ = 7737021831648.

The previous prime is 23211222212863. The next prime is 23211222213019. The reversal of 23211222213012 is 21031222211232.

It is a super-2 number, since 2×23211222213012² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211222213019) 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 7 ways as a sum of consecutive naturals, for example, 4657083 + ... + 8252930.

It is an arithmetic number, because the mean of its divisors is an integer number (2256661840524).

Almost surely, 2^{23211222213012} is an apocalyptic number.

It is an amenable number.

23211222213012 is an abundant number, since it is smaller than the sum of its proper divisors (30948661959564).

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

23211222213012 is a wasteful number, since it uses less digits than its factorization.

23211222213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13059847 (or 13059845 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 23211222213012 its reverse (21031222211232), we get a palindrome (44242444424244).

The spelling of 23211222213012 in words is "twenty-three trillion, two hundred eleven billion, two hundred twenty-two million, two hundred thirteen thousand, twelve".