1012115200 has 54 divisors (see below), whose sum is σ = 2505159104. Its totient is φ = 404843520.

The previous prime is 1012115147. The next prime is 1012115227. The reversal of 1012115200 is 25112101.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 72672 + ... + 85471.

Almost surely, 2^1012115200 is an apocalyptic number.

1012115200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012115200 is an abundant number, since it is smaller than the sum of its proper divisors (1493043904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012115200 is an equidigital number, since it uses as much as digits as its factorization.

1012115200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158169 (or 158150 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1012115200 is about 31813.7580301353. The cubic root of 1012115200 is about 1004.0222002149.

Adding to 1012115200 its reverse (25112101), we get a palindrome (1037227301).

The spelling of 1012115200 in words is "one billion, twelve million, one hundred fifteen thousand, two hundred".