40222240400020 has 36 divisors (see below), whose sum is σ = 98257187265300. Its totient is φ = 13790482422528.

The previous prime is 40222240399973. The next prime is 40222240400063. The reversal of 40222240400020 is 2000404222204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13967725224964 + 26254515175056 = 3737342^2 + 5123916^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40222240399964 and 40222240400000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20521550245 + ... + 20521552204.

It is an arithmetic number, because the mean of its divisors is an integer number (2729366312925).

Almost surely, 2^{40222240400020} is an apocalyptic number.

It is an amenable number.

40222240400020 is an abundant number, since it is smaller than the sum of its proper divisors (58034946865280).

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

40222240400020 is a wasteful number, since it uses less digits than its factorization.

40222240400020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41043102472 (or 41043102463 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40222240400020 its reverse (2000404222204), we get a palindrome (42222644622224).

The spelling of 40222240400020 in words is "forty trillion, two hundred twenty-two billion, two hundred forty million, four hundred thousand, twenty".