121421040244 has 48 divisors (see below), whose sum is σ = 260964692352. Its totient is φ = 48245548032.

The previous prime is 121421040187. The next prime is 121421040263. The reversal of 121421040244 is 442040124121.

It is a happy number.

121421040244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1871737 + ... + 1935520.

It is an arithmetic number, because the mean of its divisors is an integer number (5436764424).

Almost surely, 2^121421040244 is an apocalyptic number.

121421040244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121421040244 is an abundant number, since it is smaller than the sum of its proper divisors (139543652108).

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

121421040244 is a wasteful number, since it uses less digits than its factorization.

121421040244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807352 (or 3807350 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 121421040244 its reverse (442040124121), we get a palindrome (563461164365).

The spelling of 121421040244 in words is "one hundred twenty-one billion, four hundred twenty-one million, forty thousand, two hundred forty-four".