22002222240 has 96 divisors (see below), whose sum is σ = 77007792960. Its totient is φ = 5867258112.

The previous prime is 22002222191. The next prime is 22002222293. The reversal of 22002222240 is 4222220022.

It is a happy number.

22002222240 is a `hidden beast` number, since 2 + 200 + 2 + 222 + 240 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2542234 + ... + 2550873.

It is an arithmetic number, because the mean of its divisors is an integer number (802164510).

Almost surely, 2^22002222240 is an apocalyptic number.

22002222240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002222240 is an abundant number, since it is smaller than the sum of its proper divisors (55005570720).

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

22002222240 is a wasteful number, since it uses less digits than its factorization.

22002222240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093131 (or 5093117 counting only the distinct ones).

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

Adding to 22002222240 its reverse (4222220022), we get a palindrome (26224442262).

The spelling of 22002222240 in words is "twenty-two billion, two million, two hundred twenty-two thousand, two hundred forty".