40204220022 has 64 divisors (see below), whose sum is σ = 90908467200. Its totient is φ = 13166802720.

The previous prime is 40204220009. The next prime is 40204220029. The reversal of 40204220022 is 22002240204.

40204220022 is a `hidden beast` number, since 402 + 0 + 42 + 200 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40204219977 and 40204220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40204220029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10132683 + ... + 10136649.

It is an arithmetic number, because the mean of its divisors is an integer number (1420444800).

Almost surely, 2^40204220022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40204220022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45454233600).

40204220022 is an abundant number, since it is smaller than the sum of its proper divisors (50704247178).

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

40204220022 is a wasteful number, since it uses less digits than its factorization.

40204220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7218 (or 7212 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 40204220022 its reverse (22002240204), we get a palindrome (62206460226).

The spelling of 40204220022 in words is "forty billion, two hundred four million, two hundred twenty thousand, twenty-two".