20040224224 has 12 divisors (see below), whose sum is σ = 39454191504. Its totient is φ = 10020112096.

The previous prime is 20040224213. The next prime is 20040224249. The reversal of 20040224224 is 42242204002.

It is a happy number.

It is a super-2 number, since 2×20040224224² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20040224195 and 20040224204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313128472 + ... + 313128535.

It is an arithmetic number, because the mean of its divisors is an integer number (3287849292).

Almost surely, 2^20040224224 is an apocalyptic number.

It is an amenable number.

20040224224 is a deficient number, since it is larger than the sum of its proper divisors (19413967280).

20040224224 is an equidigital number, since it uses as much as digits as its factorization.

20040224224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626257017 (or 626257009 counting only the distinct ones).

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

Adding to 20040224224 its reverse (42242204002), we get a palindrome (62282428226).

The spelling of 20040224224 in words is "twenty billion, forty million, two hundred twenty-four thousand, two hundred twenty-four".