1200002222201 has 2 divisors, whose sum is σ = 1200002222202. Its totient is φ = 1200002222200.

The previous prime is 1200002222171. The next prime is 1200002222207. The reversal of 1200002222201 is 1022222000021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758468551801 + 441533670400 = 870901^2 + 664480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200002222201 - 2²² = 1199998027897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200002222207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600001111100 + 600001111101.

It is an arithmetic number, because the mean of its divisors is an integer number (600001111101).

Almost surely, 2^{1200002222201} is an apocalyptic number.

It is an amenable number.

1200002222201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200002222201 is an equidigital number, since it uses as much as digits as its factorization.

1200002222201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1200002222201 its reverse (1022222000021), we get a palindrome (2222224222222).

The spelling of 1200002222201 in words is "one trillion, two hundred billion, two million, two hundred twenty-two thousand, two hundred one".