20042242224 has 20 divisors (see below), whose sum is σ = 51775792536. Its totient is φ = 6680747392.

The previous prime is 20042242223. The next prime is 20042242249. The reversal of 20042242224 is 42224224002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20042242194 and 20042242203.

It is not an unprimeable number, because it can be changed into a prime (20042242223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208773309 + ... + 208773404.

Almost surely, 2^20042242224 is an apocalyptic number.

20042242224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20042242224 is an abundant number, since it is smaller than the sum of its proper divisors (31733550312).

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

20042242224 is a wasteful number, since it uses less digits than its factorization.

20042242224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417546724 (or 417546718 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20042242224 its reverse (42224224002), we get a palindrome (62266466226).

The spelling of 20042242224 in words is "twenty billion, forty-two million, two hundred forty-two thousand, two hundred twenty-four".