1222223340 has 48 divisors (see below), whose sum is σ = 3685475808. Its totient is φ = 300854784.

The previous prime is 1222223333. The next prime is 1222223341. The reversal of 1222223340 is 433222221.

It is not an unprimeable number, because it can be changed into a prime (1222223341) 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, 782697 + ... + 784256.

It is an arithmetic number, because the mean of its divisors is an integer number (76780746).

Almost surely, 2^1222223340 is an apocalyptic number.

1222223340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222223340 is an abundant number, since it is smaller than the sum of its proper divisors (2463252468).

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

1222223340 is a wasteful number, since it uses less digits than its factorization.

1222223340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566978 (or 1566976 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1222223340 is about 34960.3109253908. The cubic root of 1222223340 is about 1069.1784359358.

Adding to 1222223340 its reverse (433222221), we get a palindrome (1655445561).

The spelling of 1222223340 in words is "one billion, two hundred twenty-two million, two hundred twenty-three thousand, three hundred forty".