3100310120221 has 2 divisors, whose sum is σ = 3100310120222. Its totient is φ = 3100310120220.

The previous prime is 3100310120119. The next prime is 3100310120233. The reversal of 3100310120221 is 1220210130013.

3100310120221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3000911794596 + 99398325625 = 1732314^2 + 315275^2 .

It is a cyclic number.

It is not a de Polignac number, because 3100310120221 - 2¹¹ = 3100310118173 is a prime.

It is a super-2 number, since 2×3100310120221² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3100310120195 and 3100310120204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3100310120261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550155060110 + 1550155060111.

It is an arithmetic number, because the mean of its divisors is an integer number (1550155060111).

Almost surely, 2^{3100310120221} is an apocalyptic number.

It is an amenable number.

3100310120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3100310120221 is an equidigital number, since it uses as much as digits as its factorization.

3100310120221 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 3100310120221 its reverse (1220210130013), we get a palindrome (4320520250234).

The spelling of 3100310120221 in words is "three trillion, one hundred billion, three hundred ten million, one hundred twenty thousand, two hundred twenty-one".