12021122230 has 32 divisors (see below), whose sum is σ = 23308524288. Its totient is φ = 4437417600.

The previous prime is 12021122209. The next prime is 12021122233. The reversal of 12021122230 is 3222112021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021122233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618460 + ... + 637600.

It is an arithmetic number, because the mean of its divisors is an integer number (728391384).

Almost surely, 2^12021122230 is an apocalyptic number.

12021122230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021122230 is a deficient number, since it is larger than the sum of its proper divisors (11287402058).

12021122230 is a wasteful number, since it uses less digits than its factorization.

12021122230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23992.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12021122230 its reverse (3222112021), we get a palindrome (15243234251).

The spelling of 12021122230 in words is "twelve billion, twenty-one million, one hundred twenty-two thousand, two hundred thirty".