1222343412 has 48 divisors (see below), whose sum is σ = 2870982912. Its totient is φ = 404766720.

The previous prime is 1222343411. The next prime is 1222343431. The reversal of 1222343412 is 2143432221.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222343411) 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, 1906612 + ... + 1907252.

It is an arithmetic number, because the mean of its divisors is an integer number (59812144).

Almost surely, 2^1222343412 is an apocalyptic number.

1222343412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222343412 is an abundant number, since it is smaller than the sum of its proper divisors (1648639500).

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

1222343412 is a wasteful number, since it uses less digits than its factorization.

1222343412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1446 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 1222343412 is about 34962.0281448316. The cubic root of 1222343412 is about 1069.2134470464.

Adding to 1222343412 its reverse (2143432221), we get a palindrome (3365775633).

The spelling of 1222343412 in words is "one billion, two hundred twenty-two million, three hundred forty-three thousand, four hundred twelve".