959012221 has 2 divisors, whose sum is σ = 959012222. Its totient is φ = 959012220.

The previous prime is 959012191. The next prime is 959012231. The reversal of 959012221 is 122210959.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698544900 + 260467321 = 26430^2 + 16139^2 .

It is a cyclic number.

It is not a de Polignac number, because 959012221 - 2⁵ = 959012189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (959012231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479506110 + 479506111.

It is an arithmetic number, because the mean of its divisors is an integer number (479506111).

Almost surely, 2^959012221 is an apocalyptic number.

It is an amenable number.

959012221 is a deficient number, since it is larger than the sum of its proper divisors (1).

959012221 is an equidigital number, since it uses as much as digits as its factorization.

959012221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 959012221 is about 30967.9224521116. The cubic root of 959012221 is about 986.1463702189.

The spelling of 959012221 in words is "nine hundred fifty-nine million, twelve thousand, two hundred twenty-one".