20122212424 has 32 divisors (see below), whose sum is σ = 37985137920. Its totient is φ = 9993010176.

The previous prime is 20122212403. The next prime is 20122212463. The reversal of 20122212424 is 42421222102.

It is a junction number, because it is equal to n+sod(n) for n = 20122212395 and 20122212404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 988897 + ... + 1009039.

It is an arithmetic number, because the mean of its divisors is an integer number (1187035560).

Almost surely, 2^20122212424 is an apocalyptic number.

It is an amenable number.

20122212424 is a deficient number, since it is larger than the sum of its proper divisors (17862925496).

20122212424 is a wasteful number, since it uses less digits than its factorization.

20122212424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20989 (or 20985 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20122212424 its reverse (42421222102), we get a palindrome (62543434526).

The spelling of 20122212424 in words is "twenty billion, one hundred twenty-two million, two hundred twelve thousand, four hundred twenty-four".