452122221209 has 16 divisors (see below), whose sum is σ = 507303835920. Its totient is φ = 400832624640.

The previous prime is 452122221181. The next prime is 452122221293. The reversal of 452122221209 is 902122221254.

It can be written as a sum of positive squares in 8 ways, for example, as 63338795584 + 388783425625 = 251672^2 + 623525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452122221209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (452122223209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11163734 + ... + 11204159.

It is an arithmetic number, because the mean of its divisors is an integer number (31706489745).

Almost surely, 2^452122221209 is an apocalyptic number.

It is an amenable number.

452122221209 is a deficient number, since it is larger than the sum of its proper divisors (55181614711).

452122221209 is a wasteful number, since it uses less digits than its factorization.

452122221209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22367980.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 452122221209 in words is "four hundred fifty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred nine".