40221120044 has 12 divisors (see below), whose sum is σ = 80442240144. Its totient is φ = 17237622864.

The previous prime is 40221120013. The next prime is 40221120067. The reversal of 40221120044 is 44002112204.

40221120044 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 40221119998 and 40221120025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718234259 + ... + 718234314.

It is an arithmetic number, because the mean of its divisors is an integer number (6703520012).

Almost surely, 2^40221120044 is an apocalyptic number.

It is an amenable number.

40221120044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40221120044 is a wasteful number, since it uses less digits than its factorization.

40221120044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436468584 (or 1436468582 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 40221120044 its reverse (44002112204), we get a palindrome (84223232248).

The spelling of 40221120044 in words is "forty billion, two hundred twenty-one million, one hundred twenty thousand, forty-four".