12221313030 has 24 divisors (see below), whose sum is σ = 31775414112. Its totient is φ = 3259016784.

The previous prime is 12221313017. The next prime is 12221313059. The reversal of 12221313030 is 3031312221.

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

It is a junction number, because it is equal to n+sod(n) for n = 12221312994 and 12221313012.

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, 67896094 + ... + 67896273.

It is an arithmetic number, because the mean of its divisors is an integer number (1323975588).

Almost surely, 2^12221313030 is an apocalyptic number.

12221313030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221313030 is an abundant number, since it is smaller than the sum of its proper divisors (19554101082).

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

12221313030 is a wasteful number, since it uses less digits than its factorization.

12221313030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135792380 (or 135792377 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12221313030 its reverse (3031312221), we get a palindrome (15252625251).

The spelling of 12221313030 in words is "twelve billion, two hundred twenty-one million, three hundred thirteen thousand, thirty".