2112011220121 has 16 divisors (see below), whose sum is σ = 2309322074688. Its totient is φ = 1915586323200.

The previous prime is 2112011220047. The next prime is 2112011220127. The reversal of 2112011220121 is 1210221102112.

It is not a de Polignac number, because 2112011220121 - 2⁹ = 2112011219609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112011220095 and 2112011220104.

It is not an unprimeable number, because it can be changed into a prime (2112011220127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56087526 + ... + 56125168.

It is an arithmetic number, because the mean of its divisors is an integer number (144332629668).

Almost surely, 2^{2112011220121} is an apocalyptic number.

It is an amenable number.

2112011220121 is a deficient number, since it is larger than the sum of its proper divisors (197310854567).

2112011220121 is a wasteful number, since it uses less digits than its factorization.

2112011220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49272.

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

Adding to 2112011220121 its reverse (1210221102112), we get a palindrome (3322232322233).

The spelling of 2112011220121 in words is "two trillion, one hundred twelve billion, eleven million, two hundred twenty thousand, one hundred twenty-one".