12201011001021 has 8 divisors (see below), whose sum is σ = 16278317406880. Its totient is φ = 8128855964592.

The previous prime is 12201011001017. The next prime is 12201011001043. The reversal of 12201011001021 is 12010011010221.

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

It is not a de Polignac number, because 12201011001021 - 2² = 12201011001017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201011000988 and 12201011001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201011001821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287836830 + ... + 1287846303.

It is an arithmetic number, because the mean of its divisors is an integer number (2034789675860).

Almost surely, 2^{12201011001021} is an apocalyptic number.

It is an amenable number.

12201011001021 is a deficient number, since it is larger than the sum of its proper divisors (4077306405859).

12201011001021 is a wasteful number, since it uses less digits than its factorization.

12201011001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575684715.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12201011001021 its reverse (12010011010221), we get a palindrome (24211022011242).

The spelling of 12201011001021 in words is "twelve trillion, two hundred one billion, eleven million, one thousand, twenty-one".