1222403112 has 48 divisors (see below), whose sum is σ = 3783630240. Its totient is φ = 349257888.

The previous prime is 1222403111. The next prime is 1222403131. The reversal of 1222403112 is 2113042221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1222403111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1212198 + ... + 1213205.

It is an arithmetic number, because the mean of its divisors is an integer number (78825630).

Almost surely, 2^1222403112 is an apocalyptic number.

1222403112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222403112 is an abundant number, since it is smaller than the sum of its proper divisors (2561227128).

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

1222403112 is a wasteful number, since it uses less digits than its factorization.

1222403112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425422 (or 2425415 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1222403112 is about 34962.8819178282. The cubic root of 1222403112 is about 1069.2308537759.

Adding to 1222403112 its reverse (2113042221), we get a palindrome (3335445333).

The spelling of 1222403112 in words is "one billion, two hundred twenty-two million, four hundred three thousand, one hundred twelve".