1001131212 has 24 divisors (see below), whose sum is σ = 2437537536. Its totient is φ = 319201168.

The previous prime is 1001131193. The next prime is 1001131247. The reversal of 1001131212 is 2121311001.

1001131212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1813368 + ... + 1813919.

It is an arithmetic number, because the mean of its divisors is an integer number (101564064).

Almost surely, 2^1001131212 is an apocalyptic number.

1001131212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001131212 is an abundant number, since it is smaller than the sum of its proper divisors (1436406324).

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

1001131212 is a wasteful number, since it uses less digits than its factorization.

1001131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627317 (or 3627315 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1001131212 is about 31640.6575785017. The cubic root of 1001131212 is about 1000.3769285737.

Adding to 1001131212 its reverse (2121311001), we get a palindrome (3122442213).

The spelling of 1001131212 in words is "one billion, one million, one hundred thirty-one thousand, two hundred twelve".