1200220015 has 8 divisors (see below), whose sum is σ = 1442299680. Its totient is φ = 958818912.

The previous prime is 1200220001. The next prime is 1200220031. The reversal of 1200220015 is 5100220021.

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 1200220015 - 2⁵ = 1200219983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200219977 and 1200220004.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 165739 + ... + 172828.

It is an arithmetic number, because the mean of its divisors is an integer number (180287460).

Almost surely, 2^1200220015 is an apocalyptic number.

1200220015 is a deficient number, since it is larger than the sum of its proper divisors (242079665).

1200220015 is an equidigital number, since it uses as much as digits as its factorization.

1200220015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339281.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1200220015 is about 34644.1916488176. The cubic root of 1200220015 is about 1062.7235098875.

Adding to 1200220015 its reverse (5100220021), we get a palindrome (6300440036).

The spelling of 1200220015 in words is "one billion, two hundred million, two hundred twenty thousand, fifteen".