103201122221 has 2 divisors, whose sum is σ = 103201122222. Its totient is φ = 103201122220.

The previous prime is 103201122191. The next prime is 103201122239. The reversal of 103201122221 is 122221102301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52041015625 + 51160106596 = 228125^2 + 226186^2 .

It is a cyclic number.

It is not a de Polignac number, because 103201122221 - 2²² = 103196927917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103201122221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103201182221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51600561110 + 51600561111.

It is an arithmetic number, because the mean of its divisors is an integer number (51600561111).

Almost surely, 2^103201122221 is an apocalyptic number.

It is an amenable number.

103201122221 is a deficient number, since it is larger than the sum of its proper divisors (1).

103201122221 is an equidigital number, since it uses as much as digits as its factorization.

103201122221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 103201122221 its reverse (122221102301), we get a palindrome (225422224522).

The spelling of 103201122221 in words is "one hundred three billion, two hundred one million, one hundred twenty-two thousand, two hundred twenty-one".