20222424400 has 60 divisors (see below), whose sum is σ = 48598492672. Its totient is φ = 8086619520.

The previous prime is 20222424373. The next prime is 20222424419. The reversal of 20222424400 is 442422202.

It is a happy number.

It is a super-2 number, since 2×20222424400² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2196607 + ... + 2205793.

Almost surely, 2^20222424400 is an apocalyptic number.

20222424400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222424400 is an abundant number, since it is smaller than the sum of its proper divisors (28376068272).

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

20222424400 is a wasteful number, since it uses less digits than its factorization.

20222424400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14708 (or 14697 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20222424400 its reverse (442422202), we get a palindrome (20664846602).

The spelling of 20222424400 in words is "twenty billion, two hundred twenty-two million, four hundred twenty-four thousand, four hundred".