112021202012121 has 12 divisors (see below), whose sum is σ = 161808847717140. Its totient is φ = 74680596044160.

The previous prime is 112021202012081. The next prime is 112021202012123. The reversal of 112021202012121 is 121210202120211.

It can be written as a sum of positive squares in 2 ways, for example, as 44568161531721 + 67453040480400 = 6675939^2 + 8212980^2 .

It is not a de Polignac number, because 112021202012121 - 2¹⁵ = 112021201979353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112021202012094 and 112021202012103.

It is not an unprimeable number, because it can be changed into a prime (112021202012123) 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, 13614756 + ... + 20233733.

It is an arithmetic number, because the mean of its divisors is an integer number (13484070643095).

Almost surely, 2^{112021202012121} is an apocalyptic number.

It is an amenable number.

112021202012121 is a deficient number, since it is larger than the sum of its proper divisors (49787645705019).

112021202012121 is a wasteful number, since it uses less digits than its factorization.

112021202012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34216216 (or 34216213 counting only the distinct ones).

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

Adding to 112021202012121 its reverse (121210202120211), we get a palindrome (233231404132332).

The spelling of 112021202012121 in words is "one hundred twelve trillion, twenty-one billion, two hundred two million, twelve thousand, one hundred twenty-one".