121444411444 has 6 divisors (see below), whose sum is σ = 212527720034. Its totient is φ = 60722205720.

The previous prime is 121444411427. The next prime is 121444411463. The reversal of 121444411444 is 444114444121.

It can be written as a sum of positive squares in only one way, i.e., 119585939344 + 1858472100 = 345812^2 + 43110^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15180551427 + ... + 15180551434.

Almost surely, 2^121444411444 is an apocalyptic number.

It is an amenable number.

121444411444 is a deficient number, since it is larger than the sum of its proper divisors (91083308590).

121444411444 is a wasteful number, since it uses less digits than its factorization.

121444411444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30361102865 (or 30361102863 counting only the distinct ones).

The product of its digits is 32768, while the sum is 34.

Adding to 121444411444 its reverse (444114444121), we get a palindrome (565558855565).

The spelling of 121444411444 in words is "one hundred twenty-one billion, four hundred forty-four million, four hundred eleven thousand, four hundred forty-four".