201223219601 has 2 divisors, whose sum is σ = 201223219602. Its totient is φ = 201223219600.

The previous prime is 201223219591. The next prime is 201223219607. The reversal of 201223219601 is 106912322102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193758432400 + 7464787201 = 440180^2 + 86399^2 .

It is a cyclic number.

It is not a de Polignac number, because 201223219601 - 2¹⁸ = 201222957457 is a prime.

It is not a weakly prime, because it can be changed into another prime (201223219607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100611609800 + 100611609801.

It is an arithmetic number, because the mean of its divisors is an integer number (100611609801).

Almost surely, 2^201223219601 is an apocalyptic number.

It is an amenable number.

201223219601 is a deficient number, since it is larger than the sum of its proper divisors (1).

201223219601 is an equidigital number, since it uses as much as digits as its factorization.

201223219601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 201223219601 in words is "two hundred one billion, two hundred twenty-three million, two hundred nineteen thousand, six hundred one".