23212130012 has 24 divisors (see below), whose sum is σ = 42479392032. Its totient is φ = 11077352000.

The previous prime is 23212130009. The next prime is 23212130017. The reversal of 23212130012 is 21003121232.

It is a super-2 number, since 2×23212130012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212130017) 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, 231239 + ... + 316062.

It is an arithmetic number, because the mean of its divisors is an integer number (1769974668).

Almost surely, 2^23212130012 is an apocalyptic number.

It is an amenable number.

23212130012 is a deficient number, since it is larger than the sum of its proper divisors (19267262020).

23212130012 is a wasteful number, since it uses less digits than its factorization.

23212130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547789 (or 547787 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23212130012 its reverse (21003121232), we get a palindrome (44215251244).

The spelling of 23212130012 in words is "twenty-three billion, two hundred twelve million, one hundred thirty thousand, twelve".