3201012021 has 4 divisors (see below), whose sum is σ = 4268016032. Its totient is φ = 2134008012.

The previous prime is 3201012011. The next prime is 3201012029. The reversal of 3201012021 is 1202101023.

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 3201012021 - 2²⁷ = 3066794293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3201011988 and 3201012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201012029) 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, 533502001 + ... + 533502006.

It is an arithmetic number, because the mean of its divisors is an integer number (1067004008).

Almost surely, 2^3201012021 is an apocalyptic number.

It is an amenable number.

3201012021 is a deficient number, since it is larger than the sum of its proper divisors (1067004011).

3201012021 is a wasteful number, since it uses less digits than its factorization.

3201012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067004010.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 3201012021 is about 56577.4868741976. The cubic root of 3201012021 is about 1473.7679296343.

Adding to 3201012021 its reverse (1202101023), we get a palindrome (4403113044).

The spelling of 3201012021 in words is "three billion, two hundred one million, twelve thousand, twenty-one".