234101221 has 2 divisors, whose sum is σ = 234101222. Its totient is φ = 234101220.

The previous prime is 234101213. The next prime is 234101227. The reversal of 234101221 is 122101432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231496225 + 2604996 = 15215^2 + 1614^2 .

It is a cyclic number.

It is not a de Polignac number, because 234101221 - 2³ = 234101213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 234101195 and 234101204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234101227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117050610 + 117050611.

It is an arithmetic number, because the mean of its divisors is an integer number (117050611).

Almost surely, 2^234101221 is an apocalyptic number.

It is an amenable number.

234101221 is a deficient number, since it is larger than the sum of its proper divisors (1).

234101221 is an equidigital number, since it uses as much as digits as its factorization.

234101221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 234101221 is about 15300.3666949521. The cubic root of 234101221 is about 616.3128549734.

Adding to 234101221 its reverse (122101432), we get a palindrome (356202653).

The spelling of 234101221 in words is "two hundred thirty-four million, one hundred one thousand, two hundred twenty-one".