12001212220231 has 8 divisors (see below), whose sum is σ = 12932567582480. Its totient is φ = 11071026171072.

The previous prime is 12001212220199. The next prime is 12001212220237. The reversal of 12001212220231 is 13202221210021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001212220231 - 2⁵ = 12001212220199 is a prime.

It is a super-2 number, since 2×12001212220231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12001212220199 and 12001212220208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001212220237) 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, 292306950 + ... + 292348003.

It is an arithmetic number, because the mean of its divisors is an integer number (1616570947810).

Almost surely, 2^{12001212220231} is an apocalyptic number.

12001212220231 is a deficient number, since it is larger than the sum of its proper divisors (931355362249).

12001212220231 is a wasteful number, since it uses less digits than its factorization.

12001212220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584656545.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12001212220231 its reverse (13202221210021), we get a palindrome (25203433430252).

The spelling of 12001212220231 in words is "twelve trillion, one billion, two hundred twelve million, two hundred twenty thousand, two hundred thirty-one".