20222020424 has 16 divisors (see below), whose sum is σ = 38291698620. Its totient is φ = 10010900800.

The previous prime is 20222020411. The next prime is 20222020433. The reversal of 20222020424 is 42402022202.

It can be written as a sum of positive squares in 2 ways, for example, as 18832072900 + 1389947524 = 137230^2 + 37282^2 .

It is a super-2 number, since 2×20222020424² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20222020396 and 20222020405.

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, 12512819 + ... + 12514434.

Almost surely, 2^20222020424 is an apocalyptic number.

It is an amenable number.

20222020424 is a deficient number, since it is larger than the sum of its proper divisors (18069678196).

20222020424 is a wasteful number, since it uses less digits than its factorization.

20222020424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25027360 (or 25027356 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20222020424 its reverse (42402022202), we get a palindrome (62624042626).

The spelling of 20222020424 in words is "twenty billion, two hundred twenty-two million, twenty thousand, four hundred twenty-four".