11212113442021 has 8 divisors (see below), whose sum is σ = 11604910924800. Its totient is φ = 10819727484720.

The previous prime is 11212113442007. The next prime is 11212113442091. The reversal of 11212113442021 is 12024431121211.

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 11212113442021 - 2¹⁷ = 11212113310949 is a prime.

It is a super-2 number, since 2×11212113442021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212113442001) 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, 102825925 + ... + 102934906.

It is an arithmetic number, because the mean of its divisors is an integer number (1450613865600).

Almost surely, 2^{11212113442021} is an apocalyptic number.

It is an amenable number.

11212113442021 is a deficient number, since it is larger than the sum of its proper divisors (392797482779).

11212113442021 is a wasteful number, since it uses less digits than its factorization.

11212113442021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205762739.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 11212113442021 its reverse (12024431121211), we get a palindrome (23236544563232).

The spelling of 11212113442021 in words is "eleven trillion, two hundred twelve billion, one hundred thirteen million, four hundred forty-two thousand, twenty-one".