1222345340 has 48 divisors (see below), whose sum is σ = 2600186400. Its totient is φ = 482645760.

The previous prime is 1222345321. The next prime is 1222345451. The reversal of 1222345340 is 435432221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514355 + ... + 516725.

It is an arithmetic number, because the mean of its divisors is an integer number (54170550).

Almost surely, 2^1222345340 is an apocalyptic number.

1222345340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222345340 is an abundant number, since it is smaller than the sum of its proper divisors (1377841060).

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

1222345340 is a wasteful number, since it uses less digits than its factorization.

1222345340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702 (or 2700 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1222345340 is about 34962.0557175919. The cubic root of 1222345340 is about 1069.2140092022.

Adding to 1222345340 its reverse (435432221), we get a palindrome (1657777561).

The spelling of 1222345340 in words is "one billion, two hundred twenty-two million, three hundred forty-five thousand, three hundred forty".