230221112081 has 2 divisors, whose sum is σ = 230221112082. Its totient is φ = 230221112080.

The previous prime is 230221112063. The next prime is 230221112111. The reversal of 230221112081 is 180211122032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229641265681 + 579846400 = 479209^2 + 24080^2 .

It is a cyclic number.

It is not a de Polignac number, because 230221112081 - 2¹⁴ = 230221095697 is a prime.

It is a super-2 number, since 2×230221112081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230221112281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115110556040 + 115110556041.

It is an arithmetic number, because the mean of its divisors is an integer number (115110556041).

Almost surely, 2^230221112081 is an apocalyptic number.

It is an amenable number.

230221112081 is a deficient number, since it is larger than the sum of its proper divisors (1).

230221112081 is an equidigital number, since it uses as much as digits as its factorization.

230221112081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

The spelling of 230221112081 in words is "two hundred thirty billion, two hundred twenty-one million, one hundred twelve thousand, eighty-one".