2221223224340 has 24 divisors (see below), whose sum is σ = 4743629261280. Its totient is φ = 873430148768.

The previous prime is 2221223224333. The next prime is 2221223224343. The reversal of 2221223224340 is 434223221222.

It is a happy number.

It is a super-2 number, since 2×2221223224340² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221223224343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941195102 + ... + 941197461.

It is an arithmetic number, because the mean of its divisors is an integer number (197651219220).

Almost surely, 2^{2221223224340} is an apocalyptic number.

2221223224340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221223224340 is an abundant number, since it is smaller than the sum of its proper divisors (2522406036940).

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

2221223224340 is a wasteful number, since it uses less digits than its factorization.

2221223224340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882392631 (or 1882392629 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 2221223224340 its reverse (434223221222), we get a palindrome (2655446445562).

The spelling of 2221223224340 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-three million, two hundred twenty-four thousand, three hundred forty".