11212300618121 has 4 divisors (see below), whose sum is σ = 11213873839872. Its totient is φ = 11210727396372.

The previous prime is 11212300618091. The next prime is 11212300618139. The reversal of 11212300618121 is 12181600321211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11212300618121 is a prime.

It is a super-2 number, since 2×11212300618121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11212300618921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786600185 + ... + 786614438.

It is an arithmetic number, because the mean of its divisors is an integer number (2803468459968).

Almost surely, 2^{11212300618121} is an apocalyptic number.

It is an amenable number.

11212300618121 is a deficient number, since it is larger than the sum of its proper divisors (1573221751).

11212300618121 is an equidigital number, since it uses as much as digits as its factorization.

11212300618121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573221750.

The product of its (nonzero) digits is 1152, while the sum is 29.

Adding to 11212300618121 its reverse (12181600321211), we get a palindrome (23393900939332).

The spelling of 11212300618121 in words is "eleven trillion, two hundred twelve billion, three hundred million, six hundred eighteen thousand, one hundred twenty-one".