12000012201021 has 16 divisors (see below), whose sum is σ = 17230870633536. Its totient is φ = 7384586942976.

The previous prime is 12000012201019. The next prime is 12000012201061. The reversal of 12000012201021 is 12010221000021.

It is not a de Polignac number, because 12000012201021 - 2¹ = 12000012201019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12000012200988 and 12000012201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000012201011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8957101 + ... + 10209293.

It is an arithmetic number, because the mean of its divisors is an integer number (1076929414596).

Almost surely, 2^{12000012201021} is an apocalyptic number.

It is an amenable number.

12000012201021 is a deficient number, since it is larger than the sum of its proper divisors (5230858432515).

12000012201021 is a wasteful number, since it uses less digits than its factorization.

12000012201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497932.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12000012201021 its reverse (12010221000021), we get a palindrome (24010233201042).

The spelling of 12000012201021 in words is "twelve trillion, twelve million, two hundred one thousand, twenty-one".