11111320421202 has 128 divisors (see below), whose sum is σ = 23747680051200. Its totient is φ = 3455946418176.

The previous prime is 11111320421143. The next prime is 11111320421207. The reversal of 11111320421202 is 20212402311111.

It is a super-2 number, since 2×11111320421202² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11111320421207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2527020868 + ... + 2527025264.

It is an arithmetic number, because the mean of its divisors is an integer number (185528750400).

Almost surely, 2^{11111320421202} is an apocalyptic number.

11111320421202 is an abundant number, since it is smaller than the sum of its proper divisors (12636359629998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111320421202 is a wasteful number, since it uses less digits than its factorization.

11111320421202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11111320421202 its reverse (20212402311111), we get a palindrome (31323722732313).

The spelling of 11111320421202 in words is "eleven trillion, one hundred eleven billion, three hundred twenty million, four hundred twenty-one thousand, two hundred two".