121340422452 has 96 divisors (see below), whose sum is σ = 291569725440. Its totient is φ = 39256370560.

The previous prime is 121340422439. The next prime is 121340422457. The reversal of 121340422452 is 254224043121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121340422457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47940427 + ... + 47942957.

It is an arithmetic number, because the mean of its divisors is an integer number (3037184640).

Almost surely, 2^121340422452 is an apocalyptic number.

121340422452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121340422452 is an abundant number, since it is smaller than the sum of its proper divisors (170229302988).

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

121340422452 is a wasteful number, since it uses less digits than its factorization.

121340422452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261 (or 3259 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 121340422452 its reverse (254224043121), we get a palindrome (375564465573).

The spelling of 121340422452 in words is "one hundred twenty-one billion, three hundred forty million, four hundred twenty-two thousand, four hundred fifty-two".