112020112121 has 8 divisors (see below), whose sum is σ = 113136227400. Its totient is φ = 110904134400.

The previous prime is 112020112109. The next prime is 112020112151. The reversal of 112020112121 is 121211020211.

It can be written as a sum of positive squares in 4 ways, for example, as 13938399721 + 98081712400 = 118061^2 + 313180^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112020112121 - 2²² = 112015917817 is a prime.

It is a super-2 number, since 2×112020112121² (a number of 23 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 = 112020112096 and 112020112105.

It is not an unprimeable number, because it can be changed into a prime (112020112151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2601515 + ... + 2644223.

It is an arithmetic number, because the mean of its divisors is an integer number (14142028425).

Almost surely, 2^112020112121 is an apocalyptic number.

It is an amenable number.

112020112121 is a deficient number, since it is larger than the sum of its proper divisors (1116115279).

112020112121 is a wasteful number, since it uses less digits than its factorization.

112020112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68779.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 112020112121 its reverse (121211020211), we get a palindrome (233231132332).

The spelling of 112020112121 in words is "one hundred twelve billion, twenty million, one hundred twelve thousand, one hundred twenty-one".