1001211100012 has 48 divisors (see below), whose sum is σ = 1784592875520. Its totient is φ = 491403931200.

The previous prime is 1001211100009. The next prime is 1001211100031. The reversal of 1001211100012 is 2100011121001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143704153 + ... + 143711119.

It is an arithmetic number, because the mean of its divisors is an integer number (37179018240).

Almost surely, 2^{1001211100012} is an apocalyptic number.

It is an amenable number.

1001211100012 is a deficient number, since it is larger than the sum of its proper divisors (783381775508).

1001211100012 is a wasteful number, since it uses less digits than its factorization.

1001211100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9622 (or 9620 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1001211100012 its reverse (2100011121001), we get a palindrome (3101222221013).

The spelling of 1001211100012 in words is "one trillion, one billion, two hundred eleven million, one hundred thousand, twelve".