3266126221 has 4 divisors (see below), whose sum is σ = 3267380700. Its totient is φ = 3264871744.

The previous prime is 3266126161. The next prime is 3266126243. The reversal of 3266126221 is 1226216623.

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 1573708900 + 1692417321 = 39670^2 + 41139^2 .

It is a cyclic number.

It is not a de Polignac number, because 3266126221 - 2¹³ = 3266118029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3266126261) 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, 623326 + ... + 628543.

It is an arithmetic number, because the mean of its divisors is an integer number (816845175).

Almost surely, 2^3266126221 is an apocalyptic number.

It is an amenable number.

3266126221 is a deficient number, since it is larger than the sum of its proper divisors (1254479).

3266126221 is a wasteful number, since it uses less digits than its factorization.

3266126221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254478.

The product of its digits is 10368, while the sum is 31.

The square root of 3266126221 is about 57150.0325546714. The cubic root of 3266126221 is about 1483.6939350654.

The spelling of 3266126221 in words is "three billion, two hundred sixty-six million, one hundred twenty-six thousand, two hundred twenty-one".