1222030452221 has 2 divisors, whose sum is σ = 1222030452222. Its totient is φ = 1222030452220.

The previous prime is 1222030452217. The next prime is 1222030452259. The reversal of 1222030452221 is 1222540302221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 689706996196 + 532323456025 = 830486^2 + 729605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222030452221 - 2² = 1222030452217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222030452211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611015226110 + 611015226111.

It is an arithmetic number, because the mean of its divisors is an integer number (611015226111).

Almost surely, 2^{1222030452221} is an apocalyptic number.

It is an amenable number.

1222030452221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222030452221 is an equidigital number, since it uses as much as digits as its factorization.

1222030452221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 1222030452221 its reverse (1222540302221), we get a palindrome (2444570754442).

The spelling of 1222030452221 in words is "one trillion, two hundred twenty-two billion, thirty million, four hundred fifty-two thousand, two hundred twenty-one".