122421424012 has 24 divisors (see below), whose sum is σ = 227676778560. Its totient is φ = 57397489920.

The previous prime is 122421424009. The next prime is 122421424019. The reversal of 122421424012 is 210424124221.

It is a super-2 number, since 2×122421424012² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122421424019) 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 7 ways as a sum of consecutive naturals, for example, 3303187 + ... + 3340042.

It is an arithmetic number, because the mean of its divisors is an integer number (9486532440).

Almost surely, 2^122421424012 is an apocalyptic number.

It is an amenable number.

122421424012 is a deficient number, since it is larger than the sum of its proper divisors (105255354548).

122421424012 is a wasteful number, since it uses less digits than its factorization.

122421424012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643521 (or 6643519 counting only the distinct ones).

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

Adding to 122421424012 its reverse (210424124221), we get a palindrome (332845548233).

The spelling of 122421424012 in words is "one hundred twenty-two billion, four hundred twenty-one million, four hundred twenty-four thousand, twelve".