121311244444 has 24 divisors (see below), whose sum is σ = 228657033920. Its totient is φ = 55981969344.

The previous prime is 121311244409. The next prime is 121311244451. The reversal of 121311244444 is 444442113121.

It is a congruent 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, 220477 + ... + 539659.

Almost surely, 2^121311244444 is an apocalyptic number.

It is an amenable number.

121311244444 is a deficient number, since it is larger than the sum of its proper divisors (107345789476).

121311244444 is a wasteful number, since it uses less digits than its factorization.

121311244444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326509 (or 326507 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

Adding to 121311244444 its reverse (444442113121), we get a palindrome (565753357565).

The spelling of 121311244444 in words is "one hundred twenty-one billion, three hundred eleven million, two hundred forty-four thousand, four hundred forty-four".