235228211 has 2 divisors, whose sum is σ = 235228212. Its totient is φ = 235228210.

The previous prime is 235228187. The next prime is 235228229. The reversal of 235228211 is 112822532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235228211 is a prime.

It is a super-2 number, since 2×235228211² = 110664622500521042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (235228241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117614105 + 117614106.

It is an arithmetic number, because the mean of its divisors is an integer number (117614106).

Almost surely, 2^235228211 is an apocalyptic number.

235228211 is a deficient number, since it is larger than the sum of its proper divisors (1).

235228211 is an equidigital number, since it uses as much as digits as its factorization.

235228211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 26.

The square root of 235228211 is about 15337.1513326302. The cubic root of 235228211 is about 617.3002722961.

The spelling of 235228211 in words is "two hundred thirty-five million, two hundred twenty-eight thousand, two hundred eleven".