1001245212 has 60 divisors (see below), whose sum is σ = 2855413176. Its totient is φ = 303406560.

The previous prime is 1001245199. The next prime is 1001245229. The reversal of 1001245212 is 2125421001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 136903 + ... + 144030.

Almost surely, 2^1001245212 is an apocalyptic number.

1001245212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001245212 is an abundant number, since it is smaller than the sum of its proper divisors (1854167964).

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

1001245212 is a wasteful number, since it uses less digits than its factorization.

1001245212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280960 (or 280949 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1001245212 is about 31642.4590068471. The cubic root of 1001245212 is about 1000.4148985021.

Adding to 1001245212 its reverse (2125421001), we get a palindrome (3126666213).

The spelling of 1001245212 in words is "one billion, one million, two hundred forty-five thousand, two hundred twelve".