11212021112001 has 32 divisors (see below), whose sum is σ = 15400709936640. Its totient is φ = 7251177369600.

The previous prime is 11212021111979. The next prime is 11212021112107. The reversal of 11212021112001 is 10021112021211.

It is a happy number.

It is not a de Polignac number, because 11212021112001 - 2⁵ = 11212021111969 is a prime.

It is a super-2 number, since 2×11212021112001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212021111001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16636081 + ... + 17296913.

It is an arithmetic number, because the mean of its divisors is an integer number (481272185520).

Almost surely, 2^{11212021112001} is an apocalyptic number.

It is an amenable number.

11212021112001 is a deficient number, since it is larger than the sum of its proper divisors (4188688824639).

11212021112001 is a wasteful number, since it uses less digits than its factorization.

11212021112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661657.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11212021112001 its reverse (10021112021211), we get a palindrome (21233133133212).

The spelling of 11212021112001 in words is "eleven trillion, two hundred twelve billion, twenty-one million, one hundred twelve thousand, one".