121420005414240 has 192 divisors, whose sum is σ = 413218443036672. Its totient is φ = 29791897958400.

The previous prime is 121420005414179. The next prime is 121420005414283. The reversal of 121420005414240 is 42414500024121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 121420005414198 and 121420005414207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29342856 + ... + 33224135.

It is an arithmetic number, because the mean of its divisors is an integer number (2152179390816).

Almost surely, 2^{121420005414240} is an apocalyptic number.

121420005414240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121420005414240 is an abundant number, since it is smaller than the sum of its proper divisors (291798437622432).

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

121420005414240 is a wasteful number, since it uses less digits than its factorization.

121420005414240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62567333 (or 62567325 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 121420005414240 its reverse (42414500024121), we get a palindrome (163834505438361).

The spelling of 121420005414240 in words is "one hundred twenty-one trillion, four hundred twenty billion, five million, four hundred fourteen thousand, two hundred forty".