3214555221 has 4 divisors (see below), whose sum is σ = 4286073632. Its totient is φ = 2143036812.

The previous prime is 3214555213. The next prime is 3214555273. The reversal of 3214555221 is 1225554123.

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 3214555221 - 2³ = 3214555213 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 (3214555291) 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, 535759201 + ... + 535759206.

It is an arithmetic number, because the mean of its divisors is an integer number (1071518408).

Almost surely, 2^3214555221 is an apocalyptic number.

It is an amenable number.

3214555221 is a deficient number, since it is larger than the sum of its proper divisors (1071518411).

3214555221 is a wasteful number, since it uses less digits than its factorization.

3214555221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071518410.

The product of its digits is 12000, while the sum is 30.

The square root of 3214555221 is about 56697.0477273729. The cubic root of 3214555221 is about 1475.8434660232.

The spelling of 3214555221 in words is "three billion, two hundred fourteen million, five hundred fifty-five thousand, two hundred twenty-one".