1200221107 has 2 divisors, whose sum is σ = 1200221108. Its totient is φ = 1200221106.

The previous prime is 1200221081. The next prime is 1200221111. The reversal of 1200221107 is 7011220021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200221107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200221137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600110553 + 600110554.

It is an arithmetic number, because the mean of its divisors is an integer number (600110554).

Almost surely, 2^1200221107 is an apocalyptic number.

1200221107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200221107 is an equidigital number, since it uses as much as digits as its factorization.

1200221107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1200221107 is about 34644.2074090316. The cubic root of 1200221107 is about 1062.7238321878.

Adding to 1200221107 its reverse (7011220021), we get a palindrome (8211441128).

The spelling of 1200221107 in words is "one billion, two hundred million, two hundred twenty-one thousand, one hundred seven".