3312100021 has 4 divisors (see below), whose sum is σ = 3506929452. Its totient is φ = 3117270592.

The previous prime is 3312100019. The next prime is 3312100037. The reversal of 3312100021 is 1200012133.

3312100021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1368260100 + 1943839921 = 36990^2 + 44089^2 .

It is a cyclic number.

It is not a de Polignac number, because 3312100021 - 2¹ = 3312100019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3312099974 and 3312100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3312100091) 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, 97414690 + ... + 97414723.

It is an arithmetic number, because the mean of its divisors is an integer number (876732363).

Almost surely, 2^3312100021 is an apocalyptic number.

It is an amenable number.

3312100021 is a deficient number, since it is larger than the sum of its proper divisors (194829431).

3312100021 is a wasteful number, since it uses less digits than its factorization.

3312100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194829430.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3312100021 is about 57550.8472657006. The cubic root of 3312100021 is about 1490.6229878368.

Adding to 3312100021 its reverse (1200012133), we get a palindrome (4512112154).

The spelling of 3312100021 in words is "three billion, three hundred twelve million, one hundred thousand, twenty-one".