424121256012 has 24 divisors (see below), whose sum is σ = 991065208896. Its totient is φ = 141166759888.

The previous prime is 424121255993. The next prime is 424121256029. The reversal of 424121256012 is 210652121424.

It is a super-2 number, since 2×424121256012² (a number of 24 digits) contains 22 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 7 ways as a sum of consecutive naturals, for example, 25865478 + ... + 25881869.

It is an arithmetic number, because the mean of its divisors is an integer number (41294383704).

Almost surely, 2^424121256012 is an apocalyptic number.

It is an amenable number.

424121256012 is an abundant number, since it is smaller than the sum of its proper divisors (566943952884).

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

424121256012 is a wasteful number, since it uses less digits than its factorization.

424121256012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51748037 (or 51748035 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 424121256012 its reverse (210652121424), we get a palindrome (634773377436).

The spelling of 424121256012 in words is "four hundred twenty-four billion, one hundred twenty-one million, two hundred fifty-six thousand, twelve".