1222321230 has 72 divisors (see below), whose sum is σ = 3441347208. Its totient is φ = 300875328.

The previous prime is 1222321213. The next prime is 1222321297. The reversal of 1222321230 is 321232221.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24972 + ... + 55391.

It is an arithmetic number, because the mean of its divisors is an integer number (47796489).

Almost surely, 2^1222321230 is an apocalyptic number.

1222321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222321230 is an abundant number, since it is smaller than the sum of its proper divisors (2219025978).

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

1222321230 is a wasteful number, since it uses less digits than its factorization.

1222321230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80402 (or 80386 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1222321230 is about 34961.7109135122. The cubic root of 1222321230 is about 1069.2069792960.

Adding to 1222321230 its reverse (321232221), we get a palindrome (1543553451).

The spelling of 1222321230 in words is "one billion, two hundred twenty-two million, three hundred twenty-one thousand, two hundred thirty".