112221102020121 has 6 divisors (see below), whose sum is σ = 162097147362410. Its totient is φ = 74814068013408.

The previous prime is 112221102020113. The next prime is 112221102020201. The reversal of 112221102020121 is 121020201122211.

112221102020121 is a `hidden beast` number, since 11 + 222 + 110 + 202 + 0 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 108069434966025 + 4151667054096 = 10395645^2 + 2037564^2 .

It is not a de Polignac number, because 112221102020121 - 2³ = 112221102020113 is a prime.

It is a super-2 number, since 2×112221102020121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112221102020094 and 112221102020103.

It is not an unprimeable number, because it can be changed into a prime (112221102060121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6234505667776 + ... + 6234505667793.

Almost surely, 2^{112221102020121} is an apocalyptic number.

It is an amenable number.

112221102020121 is a deficient number, since it is larger than the sum of its proper divisors (49876045342289).

112221102020121 is a wasteful number, since it uses less digits than its factorization.

112221102020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12469011335575 (or 12469011335572 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 112221102020121 its reverse (121020201122211), we get a palindrome (233241303142332).

The spelling of 112221102020121 in words is "one hundred twelve trillion, two hundred twenty-one billion, one hundred two million, twenty thousand, one hundred twenty-one".