5452212221 has 4 divisors (see below), whose sum is σ = 5457491292. Its totient is φ = 5446933152.

The previous prime is 5452212217. The next prime is 5452212229. The reversal of 5452212221 is 1222122545.

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 5208508900 + 243703321 = 72170^2 + 15611^2 .

It is a cyclic number.

It is not a de Polignac number, because 5452212221 - 2² = 5452212217 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 (5452212229) 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, 2637986 + ... + 2640051.

It is an arithmetic number, because the mean of its divisors is an integer number (1364372823).

Almost surely, 2^5452212221 is an apocalyptic number.

It is an amenable number.

5452212221 is a deficient number, since it is larger than the sum of its proper divisors (5279071).

5452212221 is a wasteful number, since it uses less digits than its factorization.

5452212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279070.

The product of its digits is 3200, while the sum is 26.

The square root of 5452212221 is about 73839.0968322338. The cubic root of 5452212221 is about 1760.0469405740.

Adding to 5452212221 its reverse (1222122545), we get a palindrome (6674334766).

The spelling of 5452212221 in words is "five billion, four hundred fifty-two million, two hundred twelve thousand, two hundred twenty-one".