12145603603221 has 12 divisors (see below), whose sum is σ = 19138526890080. Its totient is φ = 7360971880680.

The previous prime is 12145603603219. The next prime is 12145603603249. The reversal of 12145603603221 is 12230630654121.

12145603603221 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 560 + 3 + 60 + 32 + 2 + 1 = 666.

It is not a de Polignac number, because 12145603603221 - 2¹ = 12145603603219 is a prime.

It is a super-3 number, since 3×12145603603221³ (a number of 40 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145603605221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61341432241 + ... + 61341432438.

It is an arithmetic number, because the mean of its divisors is an integer number (1594877240840).

Almost surely, 2^{12145603603221} is an apocalyptic number.

12145603603221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12145603603221 is a deficient number, since it is larger than the sum of its proper divisors (6992923286859).

12145603603221 is a wasteful number, since it uses less digits than its factorization.

12145603603221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122682864696 (or 122682864693 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 12145603603221 in words is "twelve trillion, one hundred forty-five billion, six hundred three million, six hundred three thousand, two hundred twenty-one".