40501315221220 has 48 divisors (see below), whose sum is σ = 97203691968768. Its totient is φ = 13886088727680.

The previous prime is 40501315221131. The next prime is 40501315221229. The reversal of 40501315221220 is 2212251310504.

It is a happy number.

40501315221220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (40501315221229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28558305 + ... + 29942935.

It is an arithmetic number, because the mean of its divisors is an integer number (2025076916016).

Almost surely, 2^{40501315221220} is an apocalyptic number.

It is an amenable number.

40501315221220 is an abundant number, since it is smaller than the sum of its proper divisors (56702376747548).

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

40501315221220 is a wasteful number, since it uses less digits than its factorization.

40501315221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593580 (or 1593578 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 40501315221220 its reverse (2212251310504), we get a palindrome (42713566531724).

The spelling of 40501315221220 in words is "forty trillion, five hundred one billion, three hundred fifteen million, two hundred twenty-one thousand, two hundred twenty".