121111403244 has 24 divisors (see below), whose sum is σ = 304331218800. Its totient is φ = 37265047104.

The previous prime is 121111403191. The next prime is 121111403251. The reversal of 121111403244 is 442304111121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388177419 + ... + 388177730.

It is an arithmetic number, because the mean of its divisors is an integer number (12680467450).

Almost surely, 2^121111403244 is an apocalyptic number.

It is an amenable number.

121111403244 is an abundant number, since it is smaller than the sum of its proper divisors (183219815556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121111403244 is a wasteful number, since it uses less digits than its factorization.

121111403244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776355169 (or 776355167 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 121111403244 its reverse (442304111121), we get a palindrome (563415514365).

The spelling of 121111403244 in words is "one hundred twenty-one billion, one hundred eleven million, four hundred three thousand, two hundred forty-four".