11212012001001 has 24 divisors (see below), whose sum is σ = 17526989061120. Its totient is φ = 6356416241952.

The previous prime is 11212012000997. The next prime is 11212012001011. The reversal of 11212012001001 is 10010021021211.

It is not a de Polignac number, because 11212012001001 - 2² = 11212012000997 is a prime.

It is a super-2 number, since 2×11212012001001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212012001011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300265546 + ... + 300302883.

It is an arithmetic number, because the mean of its divisors is an integer number (730291210880).

Almost surely, 2^{11212012001001} is an apocalyptic number.

It is an amenable number.

11212012001001 is a deficient number, since it is larger than the sum of its proper divisors (6314977060119).

11212012001001 is a wasteful number, since it uses less digits than its factorization.

11212012001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600568573 (or 600568566 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11212012001001 its reverse (10010021021211), we get a palindrome (21222033022212).

The spelling of 11212012001001 in words is "eleven trillion, two hundred twelve billion, twelve million, one thousand, one".