20221012424 has 16 divisors (see below), whose sum is σ = 37922042700. Its totient is φ = 10108467712.

The previous prime is 20221012397. The next prime is 20221012451. The reversal of 20221012424 is 42421012202.

It is an interprime number because it is at equal distance from previous prime (20221012397) and next prime (20221012451).

It can be written as a sum of positive squares in 2 ways, for example, as 18260116900 + 1960895524 = 135130^2 + 44282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20221012396 and 20221012405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212237 + ... + 292380.

Almost surely, 2^20221012424 is an apocalyptic number.

It is an amenable number.

20221012424 is a deficient number, since it is larger than the sum of its proper divisors (17701030276).

20221012424 is a wasteful number, since it uses less digits than its factorization.

20221012424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509632 (or 509628 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20221012424 its reverse (42421012202), we get a palindrome (62642024626).

The spelling of 20221012424 in words is "twenty billion, two hundred twenty-one million, twelve thousand, four hundred twenty-four".