330121222121081 has 2 divisors, whose sum is σ = 330121222121082. Its totient is φ = 330121222121080.

The previous prime is 330121222121069. The next prime is 330121222121099. The reversal of 330121222121081 is 180121222121033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302936635755625 + 27184586365456 = 17405075^2 + 5213884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330121222121081 is a prime.

It is a super-2 number, since 2×330121222121081² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (330121222321081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165060611060540 + 165060611060541.

It is an arithmetic number, because the mean of its divisors is an integer number (165060611060541).

Almost surely, 2^{330121222121081} is an apocalyptic number.

It is an amenable number.

330121222121081 is a deficient number, since it is larger than the sum of its proper divisors (1).

330121222121081 is an equidigital number, since it uses as much as digits as its factorization.

330121222121081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 330121222121081 in words is "three hundred thirty trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, eighty-one".