222022002440 has 32 divisors (see below), whose sum is σ = 570913721280. Its totient is φ = 76121829312.

The previous prime is 222022002409. The next prime is 222022002467. The reversal of 222022002440 is 44200220222.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 396467582 + ... + 396468141.

It is an arithmetic number, because the mean of its divisors is an integer number (17841053790).

Almost surely, 2^222022002440 is an apocalyptic number.

222022002440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222022002440 is an abundant number, since it is smaller than the sum of its proper divisors (348891718840).

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

222022002440 is a wasteful number, since it uses less digits than its factorization.

222022002440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792935741 (or 792935737 counting only the distinct ones).

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

Adding to 222022002440 its reverse (44200220222), we get a palindrome (266222222662).

The spelling of 222022002440 in words is "two hundred twenty-two billion, twenty-two million, two thousand, four hundred forty".