11212100201021 has 8 divisors (see below), whose sum is σ = 11261341434720. Its totient is φ = 11162861403408.

The previous prime is 11212100201017. The next prime is 11212100201033. The reversal of 11212100201021 is 12010200121211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11212100201021 - 2² = 11212100201017 is a prime.

It is a super-2 number, since 2×11212100201021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212100200987 and 11212100201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212100801021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8944490 + ... + 10120676.

It is an arithmetic number, because the mean of its divisors is an integer number (1407667679340).

Almost surely, 2^{11212100201021} is an apocalyptic number.

It is an amenable number.

11212100201021 is a deficient number, since it is larger than the sum of its proper divisors (49241233699).

11212100201021 is a wasteful number, since it uses less digits than its factorization.

11212100201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218043.

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

Adding to 11212100201021 its reverse (12010200121211), we get a palindrome (23222300322232).

The spelling of 11212100201021 in words is "eleven trillion, two hundred twelve billion, one hundred million, two hundred one thousand, twenty-one".