40224123004220 has 24 divisors (see below), whose sum is σ = 84471838433808. Its totient is φ = 16089424416000.

The previous prime is 40224123004133. The next prime is 40224123004223. The reversal of 40224123004220 is 2240032142204.

It is a self number, because there is not a number n which added to its sum of digits gives 40224123004220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40224123004223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12578006 + ... + 15448445.

It is an arithmetic number, because the mean of its divisors is an integer number (3519659934742).

Almost surely, 2^{40224123004220} is an apocalyptic number.

It is an amenable number.

40224123004220 is an abundant number, since it is smaller than the sum of its proper divisors (44247715429588).

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

40224123004220 is a wasteful number, since it uses less digits than its factorization.

40224123004220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28098221 (or 28098219 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 40224123004220 its reverse (2240032142204), we get a palindrome (42464155146424).

The spelling of 40224123004220 in words is "forty trillion, two hundred twenty-four billion, one hundred twenty-three million, four thousand, two hundred twenty".