12010201021 has 24 divisors (see below), whose sum is σ = 15702485120. Its totient is φ = 8943581952.

The previous prime is 12010201003. The next prime is 12010201057.

12010201021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12010201021 - 2⁹ = 12010200509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12010200989 and 12010201007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010201121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202041 + ... + 254638.

Almost surely, 2^12010201021 is an apocalyptic number.

It is an amenable number.

12010201021 is a deficient number, since it is larger than the sum of its proper divisors (3692284099).

12010201021 is a wasteful number, since it uses less digits than its factorization.

12010201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456733 (or 456716 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The spelling of 12010201021 in words is "twelve billion, ten million, two hundred one thousand, twenty-one".