40042200220220 has 24 divisors (see below), whose sum is σ = 91733040505008. Its totient is φ = 14560800080000.

The previous prime is 40042200220207. The next prime is 40042200220237. The reversal of 40042200220220 is 2202200224004.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40042200220192 and 40042200220201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91005000281 + ... + 91005000720.

It is an arithmetic number, because the mean of its divisors is an integer number (3822210021042).

Almost surely, 2^{40042200220220} is an apocalyptic number.

It is an amenable number.

40042200220220 is an abundant number, since it is smaller than the sum of its proper divisors (51690840284788).

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

40042200220220 is a wasteful number, since it uses less digits than its factorization.

40042200220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182010001021 (or 182010001019 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40042200220220 its reverse (2202200224004), we get a palindrome (42244400444224).

The spelling of 40042200220220 in words is "forty trillion, forty-two billion, two hundred million, two hundred twenty thousand, two hundred twenty".