3321220232137 has 2 divisors, whose sum is σ = 3321220232138. Its totient is φ = 3321220232136.

The previous prime is 3321220232129. The next prime is 3321220232243. The reversal of 3321220232137 is 7312320221233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2392649018761 + 928571213376 = 1546819^2 + 963624^2 .

It is a cyclic number.

It is not a de Polignac number, because 3321220232137 - 2³ = 3321220232129 is a prime.

It is a super-2 number, since 2×3321220232137² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3321220232099 and 3321220232108.

It is not a weakly prime, because it can be changed into another prime (3321220232437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660610116068 + 1660610116069.

It is an arithmetic number, because the mean of its divisors is an integer number (1660610116069).

Almost surely, 2^{3321220232137} is an apocalyptic number.

It is an amenable number.

3321220232137 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321220232137 is an equidigital number, since it uses as much as digits as its factorization.

3321220232137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 31.

The spelling of 3321220232137 in words is "three trillion, three hundred twenty-one billion, two hundred twenty million, two hundred thirty-two thousand, one hundred thirty-seven".