1000225212 has 48 divisors (see below), whose sum is σ = 2669194752. Its totient is φ = 285572160.

The previous prime is 1000225207. The next prime is 1000225231. The reversal of 1000225212 is 2125220001.

It is a junction number, because it is equal to n+sod(n) for n = 1000225191 and 1000225200.

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 15 ways as a sum of consecutive naturals, for example, 142137 + ... + 149007.

It is an arithmetic number, because the mean of its divisors is an integer number (55608224).

Almost surely, 2^1000225212 is an apocalyptic number.

1000225212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000225212 is an abundant number, since it is smaller than the sum of its proper divisors (1668969540).

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

1000225212 is a wasteful number, since it uses less digits than its factorization.

1000225212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8618 (or 8616 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1000225212 is about 31626.3373155982. The cubic root of 1000225212 is about 1000.0750650318.

Adding to 1000225212 its reverse (2125220001), we get a palindrome (3125445213).

The spelling of 1000225212 in words is "one billion, two hundred twenty-five thousand, two hundred twelve".