1220150705 has 8 divisors (see below), whose sum is σ = 1468046400. Its totient is φ = 973543536.

The previous prime is 1220150699. The next prime is 1220150747. The reversal of 1220150705 is 5070510221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220150705 - 2¹⁸ = 1219888561 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320045 + ... + 323834.

It is an arithmetic number, because the mean of its divisors is an integer number (183505800).

Almost surely, 2^1220150705 is an apocalyptic number.

It is an amenable number.

1220150705 is a deficient number, since it is larger than the sum of its proper divisors (247895695).

1220150705 is an equidigital number, since it uses as much as digits as its factorization.

1220150705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644263.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 1220150705 is about 34930.6556623262. The cubic root of 1220150705 is about 1068.5737263627.

Adding to 1220150705 its reverse (5070510221), we get a palindrome (6290660926).

The spelling of 1220150705 in words is "one billion, two hundred twenty million, one hundred fifty thousand, seven hundred five".