2020112112121 has 8 divisors (see below), whose sum is σ = 2110461957000. Its totient is φ = 1931141654400.

The previous prime is 2020112112113. The next prime is 2020112112127. The reversal of 2020112112121 is 1212112110202.

It can be written as a sum of positive squares in 4 ways, for example, as 760016060521 + 1260096051600 = 871789^2 + 1122540^2 .

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

It is not a de Polignac number, because 2020112112121 - 2³ = 2020112112113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020112112095 and 2020112112104.

It is not an unprimeable number, because it can be changed into a prime (2020112112127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344843796 + ... + 344849653.

It is an arithmetic number, because the mean of its divisors is an integer number (263807744625).

Almost surely, 2^{2020112112121} is an apocalyptic number.

It is an amenable number.

2020112112121 is a deficient number, since it is larger than the sum of its proper divisors (90349844879).

2020112112121 is a wasteful number, since it uses less digits than its factorization.

2020112112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689693579.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2020112112121 its reverse (1212112110202), we get a palindrome (3232224222323).

It can be divided in two parts, 202011 and 2112121, that added together give a palindrome (2314132).

The spelling of 2020112112121 in words is "two trillion, twenty billion, one hundred twelve million, one hundred twelve thousand, one hundred twenty-one".