121424210412 has 12 divisors (see below), whose sum is σ = 283323157656. Its totient is φ = 40474736800.

The previous prime is 121424210393. The next prime is 121424210441. The reversal of 121424210412 is 214012424121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×121424210412³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5059342089 + ... + 5059342112.

It is an arithmetic number, because the mean of its divisors is an integer number (23610263138).

Almost surely, 2^121424210412 is an apocalyptic number.

121424210412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121424210412 is an abundant number, since it is smaller than the sum of its proper divisors (161898947244).

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

121424210412 is a wasteful number, since it uses less digits than its factorization.

121424210412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118684208 (or 10118684206 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 121424210412 its reverse (214012424121), we get a palindrome (335436634533).

The spelling of 121424210412 in words is "one hundred twenty-one billion, four hundred twenty-four million, two hundred ten thousand, four hundred twelve".