12221230302 has 24 divisors (see below), whose sum is σ = 26483642640. Its totient is φ = 4073080320.

The previous prime is 12221230291. The next prime is 12221230339. The reversal of 12221230302 is 20303212221.

12221230302 is a `hidden beast` number, since 122 + 212 + 30 + 302 = 666.

It is a super-2 number, since 2×12221230302² (a number of 21 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 65527 + ... + 169517.

It is an arithmetic number, because the mean of its divisors is an integer number (1103485110).

Almost surely, 2^12221230302 is an apocalyptic number.

12221230302 is an abundant number, since it is smaller than the sum of its proper divisors (14262412338).

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

12221230302 is a wasteful number, since it uses less digits than its factorization.

12221230302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110528 (or 110525 counting only the distinct ones).

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

Adding to 12221230302 its reverse (20303212221), we get a palindrome (32524442523).

The spelling of 12221230302 in words is "twelve billion, two hundred twenty-one million, two hundred thirty thousand, three hundred two".