1220210107 has 2 divisors, whose sum is σ = 1220210108.
Its totient is φ = 1220210106.
The previous prime is 1220210083. The next prime is 1220210129. The reversal of 1220210107 is 7010120221.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1220210107 is a prime.
It is not a weakly prime, because it can be changed into another prime (1220210137) 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, 610105053 + 610105054.
It is an arithmetic number, because the mean of its divisors is an integer number (610105054).
Almost surely, 21220210107 is an apocalyptic number.
1220210107 is a deficient number, since it is larger than the sum of its proper divisors (1).
1220210107 is an equidigital number, since it uses as much as digits as its factorization.
1220210107 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 56, while the sum is 16.
The square root of 1220210107 is about 34931.5059366183.
The cubic root of 1220210107 is about 1068.5910669492.
Adding to 1220210107 its reverse (7010120221), we get a palindrome (8230330328).
The spelling of 1220210107 in words is "one billion, two hundred twenty million, two hundred ten thousand, one hundred seven".