113221220121011 has 4 divisors (see below), whose sum is σ = 113246969777472. Its totient is φ = 113195470464552.

The previous prime is 113221220120977. The next prime is 113221220121047. The reversal of 113221220121011 is 110121022122311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113221220121011 - 2¹⁴ = 113221220104627 is a prime.

It is a super-2 number, since 2×113221220121011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113221220126011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12874821635 + ... + 12874830428.

It is an arithmetic number, because the mean of its divisors is an integer number (28311742444368).

Almost surely, 2^{113221220121011} is an apocalyptic number.

113221220121011 is a deficient number, since it is larger than the sum of its proper divisors (25749656461).

113221220121011 is an equidigital number, since it uses as much as digits as its factorization.

113221220121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25749656460.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 113221220121011 its reverse (110121022122311), we get a palindrome (223342242243322).

The spelling of 113221220121011 in words is "one hundred thirteen trillion, two hundred twenty-one billion, two hundred twenty million, one hundred twenty-one thousand, eleven".