40221145220 has 48 divisors (see below), whose sum is σ = 89908963200. Its totient is φ = 15070429440.

The previous prime is 40221145183. The next prime is 40221145231. The reversal of 40221145220 is 2254112204.

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 15 ways as a sum of consecutive naturals, for example, 560816 + ... + 628455.

It is an arithmetic number, because the mean of its divisors is an integer number (1873103400).

Almost surely, 2^40221145220 is an apocalyptic number.

It is an amenable number.

40221145220 is an abundant number, since it is smaller than the sum of its proper divisors (49687817980).

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

40221145220 is a wasteful number, since it uses less digits than its factorization.

40221145220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189388 (or 1189386 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 40221145220 its reverse (2254112204), we get a palindrome (42475257424).

The spelling of 40221145220 in words is "forty billion, two hundred twenty-one million, one hundred forty-five thousand, two hundred twenty".