112011210211221 has 12 divisors (see below), whose sum is σ = 161794076977260. Its totient is φ = 74674090907520.

The previous prime is 112011210211207. The next prime is 112011210211247. The reversal of 112011210211221 is 122112012110211.

It is a happy number.

112011210211221 is a `hidden beast` number, since 1 + 1 + 20 + 1 + 1 + 210 + 211 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46168355772900 + 65842854438321 = 6794730^2 + 8114361^2 .

It is not a de Polignac number, because 112011210211221 - 2¹⁴ = 112011210194837 is a prime.

It is a super-2 number, since 2×112011210211221² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112011210211194 and 112011210211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112011220211221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14975515 + ... + 21172823.

It is an arithmetic number, because the mean of its divisors is an integer number (13482839748105).

Almost surely, 2^{112011210211221} is an apocalyptic number.

It is an amenable number.

112011210211221 is a deficient number, since it is larger than the sum of its proper divisors (49782866766039).

112011210211221 is a wasteful number, since it uses less digits than its factorization.

112011210211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8205556 (or 8205553 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 112011210211221 its reverse (122112012110211), we get a palindrome (234123222321432).

The spelling of 112011210211221 in words is "one hundred twelve trillion, eleven billion, two hundred ten million, two hundred eleven thousand, two hundred twenty-one".