103010231221 has 2 divisors, whose sum is σ = 103010231222. Its totient is φ = 103010231220.

The previous prime is 103010231189. The next prime is 103010231227. The reversal of 103010231221 is 122132010301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92644140625 + 10366090596 = 304375^2 + 101814^2 .

It is a cyclic number.

It is not a de Polignac number, because 103010231221 - 2⁵ = 103010231189 is a prime.

It is a super-2 number, since 2×103010231221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103010231195 and 103010231204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103010231227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51505115610 + 51505115611.

It is an arithmetic number, because the mean of its divisors is an integer number (51505115611).

Almost surely, 2^103010231221 is an apocalyptic number.

It is an amenable number.

103010231221 is a deficient number, since it is larger than the sum of its proper divisors (1).

103010231221 is an equidigital number, since it uses as much as digits as its factorization.

103010231221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 103010231221 its reverse (122132010301), we get a palindrome (225142241522).

The spelling of 103010231221 in words is "one hundred three billion, ten million, two hundred thirty-one thousand, two hundred twenty-one".