1222223201 has 2 divisors, whose sum is σ = 1222223202. Its totient is φ = 1222223200.

The previous prime is 1222223153. The next prime is 1222223207. The reversal of 1222223201 is 1023222221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 703522576 + 518700625 = 26524^2 + 22775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222223201 - 2⁶ = 1222223137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222223201.

It is not a weakly prime, because it can be changed into another prime (1222223207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611111600 + 611111601.

It is an arithmetic number, because the mean of its divisors is an integer number (611111601).

Almost surely, 2^1222223201 is an apocalyptic number.

It is an amenable number.

1222223201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222223201 is an equidigital number, since it uses as much as digits as its factorization.

1222223201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1222223201 is about 34960.3089374222. The cubic root of 1222223201 is about 1069.1783954043.

Adding to 1222223201 its reverse (1023222221), we get a palindrome (2245445422).

The spelling of 1222223201 in words is "one billion, two hundred twenty-two million, two hundred twenty-three thousand, two hundred one".