1230102221 has 2 divisors, whose sum is σ = 1230102222. Its totient is φ = 1230102220.

The previous prime is 1230102191. The next prime is 1230102241. The reversal of 1230102221 is 1222010321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 624450121 + 605652100 = 24989^2 + 24610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230102221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230102196 and 1230102205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230102241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615051110 + 615051111.

It is an arithmetic number, because the mean of its divisors is an integer number (615051111).

Almost surely, 2^1230102221 is an apocalyptic number.

It is an amenable number.

1230102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230102221 is an equidigital number, since it uses as much as digits as its factorization.

1230102221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1230102221 is about 35072.8131321113. The cubic root of 1230102221 is about 1071.4709501147.

Adding to 1230102221 its reverse (1222010321), we get a palindrome (2452112542).

The spelling of 1230102221 in words is "one billion, two hundred thirty million, one hundred two thousand, two hundred twenty-one".