1222300443 has 36 divisors (see below), whose sum is σ = 2052904248. Its totient is φ = 644716800.

The previous prime is 1222300441. The next prime is 1222300447. The reversal of 1222300443 is 3440032221.

1222300443 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1222300443 - 2¹ = 1222300441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1222300441) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 243 + ... + 49443.

It is an arithmetic number, because the mean of its divisors is an integer number (57025118).

Almost surely, 2^1222300443 is an apocalyptic number.

1222300443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1222300443 is a deficient number, since it is larger than the sum of its proper divisors (830603805).

1222300443 is a wasteful number, since it uses less digits than its factorization.

1222300443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49244 (or 49224 counting only the distinct ones).

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

The square root of 1222300443 is about 34961.4136298863. The cubic root of 1222300443 is about 1069.2009182239.

Adding to 1222300443 its reverse (3440032221), we get a palindrome (4662332664).

The spelling of 1222300443 in words is "one billion, two hundred twenty-two million, three hundred thousand, four hundred forty-three".