12300021122 has 4 divisors (see below), whose sum is σ = 18450031686. Its totient is φ = 6150010560.

The previous prime is 12300021109. The next prime is 12300021131. The reversal of 12300021122 is 22112000321.

It is a happy number.

12300021122 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9947868121 + 2352153001 = 99739^2 + 48499^2 .

It is a super-2 number, since 2×12300021122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12300021097 and 12300021106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3075005279 + ... + 3075005282.

Almost surely, 2^12300021122 is an apocalyptic number.

12300021122 is a deficient number, since it is larger than the sum of its proper divisors (6150010564).

12300021122 is an equidigital number, since it uses as much as digits as its factorization.

12300021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6150010563.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12300021122 its reverse (22112000321), we get a palindrome (34412021443).

The spelling of 12300021122 in words is "twelve billion, three hundred million, twenty-one thousand, one hundred twenty-two".