232102011221 has 2 divisors, whose sum is σ = 232102011222. Its totient is φ = 232102011220.

The previous prime is 232102011203. The next prime is 232102011227. The reversal of 232102011221 is 122110201232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232025256100 + 76755121 = 481690^2 + 8761^2 .

It is a cyclic number.

It is not a de Polignac number, because 232102011221 - 2¹⁴ = 232101994837 is a prime.

It is a super-2 number, since 2×232102011221² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 232102011221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232102011227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116051005610 + 116051005611.

It is an arithmetic number, because the mean of its divisors is an integer number (116051005611).

Almost surely, 2^232102011221 is an apocalyptic number.

It is an amenable number.

232102011221 is a deficient number, since it is larger than the sum of its proper divisors (1).

232102011221 is an equidigital number, since it uses as much as digits as its factorization.

232102011221 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 17.

Adding to 232102011221 its reverse (122110201232), we get a palindrome (354212212453).

The spelling of 232102011221 in words is "two hundred thirty-two billion, one hundred two million, eleven thousand, two hundred twenty-one".