1025012200 has 24 divisors (see below), whose sum is σ = 2383153830. Its totient is φ = 410004800.

The previous prime is 1025012159. The next prime is 1025012201. The reversal of 1025012200 is 22105201.

1025012200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 387853636 + 637158564 = 19694^2 + 25242^2 .

It is not an unprimeable number, because it can be changed into a prime (1025012201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2562331 + ... + 2562730.

Almost surely, 2^1025012200 is an apocalyptic number.

1025012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025012200 is an abundant number, since it is smaller than the sum of its proper divisors (1358141630).

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

1025012200 is a wasteful number, since it uses less digits than its factorization.

1025012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125077 (or 5125068 counting only the distinct ones).

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

The square root of 1025012200 is about 32015.8117185868. The cubic root of 1025012200 is about 1008.2688378634.

Adding to 1025012200 its reverse (22105201), we get a palindrome (1047117401).

The spelling of 1025012200 in words is "one billion, twenty-five million, twelve thousand, two hundred".