338212229 has 4 divisors (see below), whose sum is σ = 358107084. Its totient is φ = 318317376.

The previous prime is 338212211. The next prime is 338212253. The reversal of 338212229 is 922212833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 922212833 = 179 ⋅5152027.

It can be written as a sum of positive squares in 2 ways, for example, as 191075329 + 147136900 = 13823^2 + 12130^2 .

It is a cyclic number.

It is not a de Polignac number, because 338212229 - 2¹² = 338208133 is a prime.

It is a super-2 number, since 2×338212229² = 228775023690296882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 338212195 and 338212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338212279) 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, 9947402 + ... + 9947435.

It is an arithmetic number, because the mean of its divisors is an integer number (89526771).

Almost surely, 2^338212229 is an apocalyptic number.

It is an amenable number.

338212229 is a deficient number, since it is larger than the sum of its proper divisors (19894855).

338212229 is a wasteful number, since it uses less digits than its factorization.

338212229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19894854.

The product of its digits is 10368, while the sum is 32.

The square root of 338212229 is about 18390.5472729878. The cubic root of 338212229 is about 696.7277400678.

The spelling of 338212229 in words is "three hundred thirty-eight million, two hundred twelve thousand, two hundred twenty-nine".