112021211011221 has 12 divisors (see below), whose sum is σ = 162894378429900. Its totient is φ = 74179593867840.

The previous prime is 112021211011103. The next prime is 112021211011243. The reversal of 112021211011221 is 122110112120211.

It is a happy number.

112021211011221 is a `hidden beast` number, since 1 + 120 + 212 + 110 + 1 + 1 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50013382016196 + 62007828995025 = 7072014^2 + 7874505^2 .

It is not a de Polignac number, because 112021211011221 - 2¹³ = 112021211003029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112021211011194 and 112021211011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021211011621) 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, 41767788000 + ... + 41767790681.

It is an arithmetic number, because the mean of its divisors is an integer number (13574531535825).

Almost surely, 2^{112021211011221} is an apocalyptic number.

It is an amenable number.

112021211011221 is a deficient number, since it is larger than the sum of its proper divisors (50873167418679).

112021211011221 is a wasteful number, since it uses less digits than its factorization.

112021211011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83535578836 (or 83535578833 counting only the distinct ones).

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

Adding to 112021211011221 its reverse (122110112120211), we get a palindrome (234131323131432).

The spelling of 112021211011221 in words is "one hundred twelve trillion, twenty-one billion, two hundred eleven million, eleven thousand, two hundred twenty-one".