22242220040 has 32 divisors (see below), whose sum is σ = 52678944000. Its totient is φ = 8428630464.

The previous prime is 22242220003. The next prime is 22242220051. The reversal of 22242220040 is 4002224222.

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 = 22242219994 and 22242220021.

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, 14632280 + ... + 14633799.

It is an arithmetic number, because the mean of its divisors is an integer number (1646217000).

Almost surely, 2^22242220040 is an apocalyptic number.

22242220040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22242220040 is an abundant number, since it is smaller than the sum of its proper divisors (30436723960).

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

22242220040 is a wasteful number, since it uses less digits than its factorization.

22242220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29266109 (or 29266105 counting only the distinct ones).

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

Adding to 22242220040 its reverse (4002224222), we get a palindrome (26244444262).

The spelling of 22242220040 in words is "twenty-two billion, two hundred forty-two million, two hundred twenty thousand, forty".