12021153552305 has 16 divisors (see below), whose sum is σ = 14590530864000. Its totient is φ = 9507048663552.

The previous prime is 12021153552269. The next prime is 12021153552361. The reversal of 12021153552305 is 50325535112021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12021153552305 - 2⁶ = 12021153552241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13541555 + ... + 14401944.

It is an arithmetic number, because the mean of its divisors is an integer number (911908179000).

Almost surely, 2^{12021153552305} is an apocalyptic number.

It is an amenable number.

12021153552305 is a deficient number, since it is larger than the sum of its proper divisors (2569377311695).

12021153552305 is an equidigital number, since it uses as much as digits as its factorization.

12021153552305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27944488.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 12021153552305 its reverse (50325535112021), we get a palindrome (62346688664326).

The spelling of 12021153552305 in words is "twelve trillion, twenty-one billion, one hundred fifty-three million, five hundred fifty-two thousand, three hundred five".