121244210340 has 48 divisors (see below), whose sum is σ = 370345953600. Its totient is φ = 29392535680.

The previous prime is 121244210333. The next prime is 121244210429. The reversal of 121244210340 is 43012442121.

121244210340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 121244210340.

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, 91851015 + ... + 91852334.

It is an arithmetic number, because the mean of its divisors is an integer number (7715540700).

Almost surely, 2^121244210340 is an apocalyptic number.

121244210340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121244210340 is an abundant number, since it is smaller than the sum of its proper divisors (249101743260).

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

121244210340 is a wasteful number, since it uses less digits than its factorization.

121244210340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183703372 (or 183703370 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121244210340 its reverse (43012442121), we get a palindrome (164256652461).

The spelling of 121244210340 in words is "one hundred twenty-one billion, two hundred forty-four million, two hundred ten thousand, three hundred forty".