112211121221121 has 16 divisors (see below), whose sum is σ = 161128620254336. Its totient is φ = 69050872382976.

The previous prime is 112211121221063. The next prime is 112211121221167. The reversal of 112211121221121 is 121122121112211.

It is not a de Polignac number, because 112211121221121 - 2⁶ = 112211121221057 is a prime.

It is a super-2 number, since 2×112211121221121² (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 (112211121221621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42993040 + ... + 45528273.

It is an arithmetic number, because the mean of its divisors is an integer number (10070538765896).

Almost surely, 2^{112211121221121} is an apocalyptic number.

It is an amenable number.

112211121221121 is a deficient number, since it is larger than the sum of its proper divisors (48917499033215).

112211121221121 is a wasteful number, since it uses less digits than its factorization.

112211121221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88553832.

The product of its digits is 64, while the sum is 21.

Adding to 112211121221121 its reverse (121122121112211), we get a palindrome (233333242333332).

The spelling of 112211121221121 in words is "one hundred twelve trillion, two hundred eleven billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-one".