222402022440 has 64 divisors (see below), whose sum is σ = 718529616000. Its totient is φ = 54745112832.

The previous prime is 222402022399. The next prime is 222402022441. The reversal of 222402022440 is 44220204222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 222402022440.

It is not an unprimeable number, because it can be changed into a prime (222402022441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71281140 + ... + 71284259.

It is an arithmetic number, because the mean of its divisors is an integer number (11227025250).

Almost surely, 2^222402022440 is an apocalyptic number.

222402022440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222402022440 is an abundant number, since it is smaller than the sum of its proper divisors (496127593560).

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

222402022440 is a wasteful number, since it uses less digits than its factorization.

222402022440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142565426 (or 142565422 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 222402022440 its reverse (44220204222), we get a palindrome (266622226662).

The spelling of 222402022440 in words is "two hundred twenty-two billion, four hundred two million, twenty-two thousand, four hundred forty".