12021432241 has 32 divisors (see below), whose sum is σ = 16347115008. Its totient is φ = 8562723840.

The previous prime is 12021432229. The next prime is 12021432289. The reversal of 12021432241 is 14223412021.

It is a cyclic number.

It is not a de Polignac number, because 12021432241 - 2⁷ = 12021432113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021432541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133350 + ... + 204511.

It is an arithmetic number, because the mean of its divisors is an integer number (510847344).

Almost surely, 2^12021432241 is an apocalyptic number.

It is an amenable number.

12021432241 is a deficient number, since it is larger than the sum of its proper divisors (4325682767).

12021432241 is a wasteful number, since it uses less digits than its factorization.

12021432241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337921.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12021432241 its reverse (14223412021), we get a palindrome (26244844262).

The spelling of 12021432241 in words is "twelve billion, twenty-one million, four hundred thirty-two thousand, two hundred forty-one".