1200222013 has 2 divisors, whose sum is σ = 1200222014. Its totient is φ = 1200222012.

The previous prime is 1200221989. The next prime is 1200222059. The reversal of 1200222013 is 3102220021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 798740644 + 401481369 = 28262^2 + 20037^2 .

It is an emirp because it is prime and its reverse (3102220021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200222013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200221984 and 1200222002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200222113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600111006 + 600111007.

It is an arithmetic number, because the mean of its divisors is an integer number (600111007).

Almost surely, 2^1200222013 is an apocalyptic number.

It is an amenable number.

1200222013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200222013 is an equidigital number, since it uses as much as digits as its factorization.

1200222013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1200222013 is about 34644.2204848081. The cubic root of 1200222013 is about 1062.7240995906.

Adding to 1200222013 its reverse (3102220021), we get a palindrome (4302442034).

The spelling of 1200222013 in words is "one billion, two hundred million, two hundred twenty-two thousand, thirteen".