20010212013121 has 48 divisors (see below), whose sum is σ = 22737314920320. Its totient is φ = 17585723232000.

The previous prime is 20010212013119. The next prime is 20010212013191. The reversal of 20010212013121 is 12131021201002.

It is not a de Polignac number, because 20010212013121 - 2¹ = 20010212013119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20010212013095 and 20010212013104.

It is not an unprimeable number, because it can be changed into a prime (20010212013191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1980615756 + ... + 1980625858.

It is an arithmetic number, because the mean of its divisors is an integer number (473694060840).

Almost surely, 2^{20010212013121} is an apocalyptic number.

It is an amenable number.

20010212013121 is a deficient number, since it is larger than the sum of its proper divisors (2727102907199).

20010212013121 is a wasteful number, since it uses less digits than its factorization.

20010212013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14038 (or 14027 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20010212013121 its reverse (12131021201002), we get a palindrome (32141233214123).

The spelling of 20010212013121 in words is "twenty trillion, ten billion, two hundred twelve million, thirteen thousand, one hundred twenty-one".