22222025040 has 80 divisors (see below), whose sum is σ = 70490363328. Its totient is φ = 5788059648.

The previous prime is 22222025029. The next prime is 22222025041. The reversal of 22222025040 is 4052022222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 22222024998 and 22222025016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222025041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1066329 + ... + 1086968.

Almost surely, 2^22222025040 is an apocalyptic number.

22222025040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222025040 is an abundant number, since it is smaller than the sum of its proper divisors (48268338288).

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

22222025040 is a wasteful number, since it uses less digits than its factorization.

22222025040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153356 (or 2153350 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 22222025040 its reverse (4052022222), we get a palindrome (26274047262).

The spelling of 22222025040 in words is "twenty-two billion, two hundred twenty-two million, twenty-five thousand, forty".