3100120110221 has 2 divisors, whose sum is σ = 3100120110222. Its totient is φ = 3100120110220.

The previous prime is 3100120110167. The next prime is 3100120110239. The reversal of 3100120110221 is 1220110210013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3072094002121 + 28026108100 = 1752739^2 + 167410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3100120110221 is a prime.

It is a super-2 number, since 2×3100120110221² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3100120110196 and 3100120110205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3100120110421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550060055110 + 1550060055111.

It is an arithmetic number, because the mean of its divisors is an integer number (1550060055111).

Almost surely, 2^{3100120110221} is an apocalyptic number.

It is an amenable number.

3100120110221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3100120110221 is an equidigital number, since it uses as much as digits as its factorization.

3100120110221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 3100120110221 its reverse (1220110210013), we get a palindrome (4320230320234).

The spelling of 3100120110221 in words is "three trillion, one hundred billion, one hundred twenty million, one hundred ten thousand, two hundred twenty-one".