1200221027 has 2 divisors, whose sum is σ = 1200221028. Its totient is φ = 1200221026.

The previous prime is 1200221023. The next prime is 1200221041. The reversal of 1200221027 is 7201220021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200221027 - 2² = 1200221023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200220996 and 1200221014.

It is not a weakly prime, because it can be changed into another prime (1200221023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600110513 + 600110514.

It is an arithmetic number, because the mean of its divisors is an integer number (600110514).

Almost surely, 2^1200221027 is an apocalyptic number.

1200221027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200221027 is an equidigital number, since it uses as much as digits as its factorization.

1200221027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1200221027 is about 34644.2062544374. The cubic root of 1200221027 is about 1062.7238085761.

Adding to 1200221027 its reverse (7201220021), we get a palindrome (8401441048).

The spelling of 1200221027 in words is "one billion, two hundred million, two hundred twenty-one thousand, twenty-seven".