12021301355 has 8 divisors (see below), whose sum is σ = 16486356192. Its totient is φ = 8243178048.

The previous prime is 12021301333. The next prime is 12021301379. The reversal of 12021301355 is 55310312021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12021301355 - 2⁶ = 12021301291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12021301355.

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, 171732842 + ... + 171732911.

It is an arithmetic number, because the mean of its divisors is an integer number (2060794524).

Almost surely, 2^12021301355 is an apocalyptic number.

12021301355 is a deficient number, since it is larger than the sum of its proper divisors (4465054837).

12021301355 is an equidigital number, since it uses as much as digits as its factorization.

12021301355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343465765.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 12021301355 its reverse (55310312021), we get a palindrome (67331613376).

The spelling of 12021301355 in words is "twelve billion, twenty-one million, three hundred one thousand, three hundred fifty-five".