1222004412 has 18 divisors (see below), whose sum is σ = 3088955688. Its totient is φ = 407334792.

The previous prime is 1222004389. The next prime is 1222004423. The reversal of 1222004412 is 2144002221.

1222004412 is a `hidden beast` number, since 1 + 2 + 220 + 0 + 441 + 2 = 666.

1222004412 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16972248 + ... + 16972319.

Almost surely, 2^1222004412 is an apocalyptic number.

1222004412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222004412 is an abundant number, since it is smaller than the sum of its proper divisors (1866951276).

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

1222004412 is a wasteful number, since it uses less digits than its factorization.

1222004412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33944577 (or 33944572 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1222004412 is about 34957.1796917314. The cubic root of 1222004412 is about 1069.1145940650.

Adding to 1222004412 its reverse (2144002221), we get a palindrome (3366006633).

The spelling of 1222004412 in words is "one billion, two hundred twenty-two million, four thousand, four hundred twelve".