12121012244 has 12 divisors (see below), whose sum is σ = 23140114368. Its totient is φ = 5509551000.

The previous prime is 12121012201. The next prime is 12121012279. The reversal of 12121012244 is 44221012121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137738732 + ... + 137738819.

It is an arithmetic number, because the mean of its divisors is an integer number (1928342864).

Almost surely, 2^12121012244 is an apocalyptic number.

It is an amenable number.

12121012244 is a deficient number, since it is larger than the sum of its proper divisors (11019102124).

12121012244 is a wasteful number, since it uses less digits than its factorization.

12121012244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275477566 (or 275477564 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12121012244 its reverse (44221012121), we get a palindrome (56342024365).

The spelling of 12121012244 in words is "twelve billion, one hundred twenty-one million, twelve thousand, two hundred forty-four".