12212012142243 has 12 divisors (see below), whose sum is σ = 18292890616728. Its totient is φ = 8141341428000.

The previous prime is 12212012142241. The next prime is 12212012142263. The reversal of 12212012142243 is 34224121021221.

12212012142243 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 201 + 214 + 2 + 243 = 666.

12212012142243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12212012142243 - 2¹ = 12212012142241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12212012142241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25127596758 + ... + 25127597243.

It is an arithmetic number, because the mean of its divisors is an integer number (1524407551394).

Almost surely, 2^{12212012142243} is an apocalyptic number.

12212012142243 is a deficient number, since it is larger than the sum of its proper divisors (6080878474485).

12212012142243 is an frugal number, since it uses more digits than its factorization.

12212012142243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50255194016 (or 50255194004 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 12212012142243 its reverse (34224121021221), we get a palindrome (46436133163464).

The spelling of 12212012142243 in words is "twelve trillion, two hundred twelve billion, twelve million, one hundred forty-two thousand, two hundred forty-three".