22021212312424 has 32 divisors (see below), whose sum is σ = 45500000404320. Its totient is φ = 9927272811456.

The previous prime is 22021212312377. The next prime is 22021212312493. The reversal of 22021212312424 is 42421321212022.

It is a junction number, because it is equal to n+sod(n) for n = 22021212312392 and 22021212312401.

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, 2462116762 + ... + 2462125705.

It is an arithmetic number, because the mean of its divisors is an integer number (1421875012635).

Almost surely, 2^{22021212312424} is an apocalyptic number.

It is an amenable number.

22021212312424 is an abundant number, since it is smaller than the sum of its proper divisors (23478788091896).

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

22021212312424 is a wasteful number, since it uses less digits than its factorization.

22021212312424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4924242529 (or 4924242525 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 22021212312424 its reverse (42421321212022), we get a palindrome (64442533524446).

The spelling of 22021212312424 in words is "twenty-two trillion, twenty-one billion, two hundred twelve million, three hundred twelve thousand, four hundred twenty-four".