20120010112121 has 32 divisors (see below), whose sum is σ = 20489344296960. Its totient is φ = 19754237880000.

The previous prime is 20120010112093. The next prime is 20120010112133. The reversal of 20120010112121 is 12121101002102.

It is a cyclic number.

It is not a de Polignac number, because 20120010112121 - 2¹⁸ = 20120009849977 is a prime.

It is a super-2 number, since 2×20120010112121² (a number of 27 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 = 20120010112096 and 20120010112105.

It is not an unprimeable number, because it can be changed into a prime (20120010112621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17181903866 + ... + 17181905036.

It is an arithmetic number, because the mean of its divisors is an integer number (640292009280).

Almost surely, 2^{20120010112121} is an apocalyptic number.

It is an amenable number.

20120010112121 is a deficient number, since it is larger than the sum of its proper divisors (369334184839).

20120010112121 is a wasteful number, since it uses less digits than its factorization.

20120010112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117.

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

Adding to 20120010112121 its reverse (12121101002102), we get a palindrome (32241111114223).

The spelling of 20120010112121 in words is "twenty trillion, one hundred twenty billion, ten million, one hundred twelve thousand, one hundred twenty-one".