121412444444444 has 96 divisors (see below), whose sum is σ = 228520589746176. Its totient is φ = 56241202728960.

The previous prime is 121412444444443. The next prime is 121412444444491. The reversal of 121412444444444 is 444444444214121.

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

121412444444444 is a modest number, since divided by 44444444 gives 1214124 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121412444444443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 821796509 + ... + 821944235.

It is an arithmetic number, because the mean of its divisors is an integer number (2380422809856).

Almost surely, 2^{121412444444444} is an apocalyptic number.

It is an amenable number.

121412444444444 is a deficient number, since it is larger than the sum of its proper divisors (107108145301732).

121412444444444 is a wasteful number, since it uses less digits than its factorization.

121412444444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148555 (or 148553 counting only the distinct ones).

The product of its digits is 4194304, while the sum is 47.

Adding to 121412444444444 its reverse (444444444214121), we get a palindrome (565856888658565).

The spelling of 121412444444444 in words is "one hundred twenty-one trillion, four hundred twelve billion, four hundred forty-four million, four hundred forty-four thousand, four hundred forty-four".