336152221 has 4 divisors (see below), whose sum is σ = 336221692. Its totient is φ = 336082752.

The previous prime is 336152213. The next prime is 336152227. The reversal of 336152221 is 122251633.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122251633 = 7 ⋅17464519.

It can be written as a sum of positive squares in 2 ways, for example, as 298771225 + 37380996 = 17285^2 + 6114^2 .

It is a cyclic number.

It is not a de Polignac number, because 336152221 - 2³ = 336152213 is a prime.

It is a super-2 number, since 2×336152221² = 225996631366465682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (336152227) 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, 26886 + ... + 37351.

It is an arithmetic number, because the mean of its divisors is an integer number (84055423).

Almost surely, 2^336152221 is an apocalyptic number.

It is an amenable number.

336152221 is a deficient number, since it is larger than the sum of its proper divisors (69471).

336152221 is an equidigital number, since it uses as much as digits as its factorization.

336152221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69470.

The product of its digits is 2160, while the sum is 25.

The square root of 336152221 is about 18334.4544778403. The cubic root of 336152221 is about 695.3102980978.

The spelling of 336152221 in words is "three hundred thirty-six million, one hundred fifty-two thousand, two hundred twenty-one".