1012200515 has 4 divisors (see below), whose sum is σ = 1214640624. Its totient is φ = 809760408.

The previous prime is 1012200493. The next prime is 1012200523. The reversal of 1012200515 is 5150022101.

1012200515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012200515 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012200493 and 1012200502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101220047 + ... + 101220056.

It is an arithmetic number, because the mean of its divisors is an integer number (303660156).

Almost surely, 2^1012200515 is an apocalyptic number.

1012200515 is a deficient number, since it is larger than the sum of its proper divisors (202440109).

1012200515 is an equidigital number, since it uses as much as digits as its factorization.

1012200515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202440108.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1012200515 is about 31815.0988525888. The cubic root of 1012200515 is about 1004.0504103591.

Adding to 1012200515 its reverse (5150022101), we get a palindrome (6162222616).

The spelling of 1012200515 in words is "one billion, twelve million, two hundred thousand, five hundred fifteen".