22020040040 has 32 divisors (see below), whose sum is σ = 49651224480. Its totient is φ = 8789147712.

The previous prime is 22020040033. The next prime is 22020040051. The reversal of 22020040040 is 4004002022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22020039997 and 22020040024.

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, 570722 + ... + 608081.

It is an arithmetic number, because the mean of its divisors is an integer number (1551600765).

Almost surely, 2^22020040040 is an apocalyptic number.

22020040040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020040040 is an abundant number, since it is smaller than the sum of its proper divisors (27631184440).

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

22020040040 is a wasteful number, since it uses less digits than its factorization.

22020040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179281 (or 1179277 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22020040040 its reverse (4004002022), we get a palindrome (26024042062).

The spelling of 22020040040 in words is "twenty-two billion, twenty million, forty thousand, forty".