22221100340 has 12 divisors (see below), whose sum is σ = 46664310756. Its totient is φ = 8888440128.

The previous prime is 22221100339. The next prime is 22221100351. The reversal of 22221100340 is 4300112222.

It can be written as a sum of positive squares in 2 ways, for example, as 16239934096 + 5981166244 = 127436^2 + 77338^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 555527489 + ... + 555527528.

It is an arithmetic number, because the mean of its divisors is an integer number (3888692563).

Almost surely, 2^22221100340 is an apocalyptic number.

22221100340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221100340 is an abundant number, since it is smaller than the sum of its proper divisors (24443210416).

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

22221100340 is a wasteful number, since it uses less digits than its factorization.

22221100340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111055026 (or 1111055024 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22221100340 its reverse (4300112222), we get a palindrome (26521212562).

The spelling of 22221100340 in words is "twenty-two billion, two hundred twenty-one million, one hundred thousand, three hundred forty".