1001211212012 has 96 divisors (see below), whose sum is σ = 2033349427200. Its totient is φ = 426576974400.

The previous prime is 1001211211999. The next prime is 1001211212039. The reversal of 1001211212012 is 2102121121001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110127587 + ... + 110136677.

It is an arithmetic number, because the mean of its divisors is an integer number (21180723200).

Almost surely, 2^{1001211212012} is an apocalyptic number.

It is an amenable number.

1001211212012 is an abundant number, since it is smaller than the sum of its proper divisors (1032138215188).

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

1001211212012 is a wasteful number, since it uses less digits than its factorization.

1001211212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10507 (or 10505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1001211212012 its reverse (2102121121001), we get a palindrome (3103332333013).

The spelling of 1001211212012 in words is "one trillion, one billion, two hundred eleven million, two hundred twelve thousand, twelve".