12201002021001 has 4 divisors (see below), whose sum is σ = 16268002694672. Its totient is φ = 8134001347332.

The previous prime is 12201002020993. The next prime is 12201002021099. The reversal of 12201002021001 is 10012020010221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12201002021001 - 2³ = 12201002020993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201002021401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033500336831 + ... + 2033500336836.

It is an arithmetic number, because the mean of its divisors is an integer number (4067000673668).

Almost surely, 2^{12201002021001} is an apocalyptic number.

It is an amenable number.

12201002021001 is a deficient number, since it is larger than the sum of its proper divisors (4067000673671).

12201002021001 is an equidigital number, since it uses as much as digits as its factorization.

12201002021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067000673670.

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

Adding to 12201002021001 its reverse (10012020010221), we get a palindrome (22213022031222).

The spelling of 12201002021001 in words is "twelve trillion, two hundred one billion, two million, twenty-one thousand, one".