12001233212272 has 40 divisors (see below), whose sum is σ = 23373720985616. Its totient is φ = 5969307488256.

The previous prime is 12001233212251. The next prime is 12001233212273. The reversal of 12001233212272 is 27221233210021.

It is a happy number.

It is a super-2 number, since 2×12001233212272² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12001233212272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001233212273) 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, 114564943 + ... + 114669649.

Almost surely, 2^{12001233212272} is an apocalyptic number.

It is an amenable number.

12001233212272 is a deficient number, since it is larger than the sum of its proper divisors (11372487773344).

12001233212272 is a wasteful number, since it uses less digits than its factorization.

12001233212272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142025 (or 142019 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 12001233212272 its reverse (27221233210021), we get a palindrome (39222466422293).

The spelling of 12001233212272 in words is "twelve trillion, one billion, two hundred thirty-three million, two hundred twelve thousand, two hundred seventy-two".