12021413145 has 32 divisors (see below), whose sum is σ = 23138964480. Its totient is φ = 5206265280.

The previous prime is 12021413093. The next prime is 12021413153. The reversal of 12021413145 is 54131412021.

It is not a de Polignac number, because 12021413145 - 2⁶ = 12021413081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3010891 + ... + 3014880.

It is an arithmetic number, because the mean of its divisors is an integer number (723092640).

Almost surely, 2^12021413145 is an apocalyptic number.

12021413145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12021413145 is a deficient number, since it is larger than the sum of its proper divisors (11117551335).

12021413145 is a wasteful number, since it uses less digits than its factorization.

12021413145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6025805.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 12021413145 its reverse (54131412021), we get a palindrome (66152825166).

The spelling of 12021413145 in words is "twelve billion, twenty-one million, four hundred thirteen thousand, one hundred forty-five".