12012155230 has 16 divisors (see below), whose sum is σ = 21835959264. Its totient is φ = 4757288800.

The previous prime is 12012155213. The next prime is 12012155263. The reversal of 12012155230 is 3255121021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5945602 + ... + 5947621.

It is an arithmetic number, because the mean of its divisors is an integer number (1364747454).

Almost surely, 2^12012155230 is an apocalyptic number.

12012155230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012155230 is a deficient number, since it is larger than the sum of its proper divisors (9823804034).

12012155230 is a wasteful number, since it uses less digits than its factorization.

12012155230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11893331.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 12012155230 its reverse (3255121021), we get a palindrome (15267276251).

The spelling of 12012155230 in words is "twelve billion, twelve million, one hundred fifty-five thousand, two hundred thirty".