2121010212012 has 96 divisors (see below), whose sum is σ = 5236681266432. Its totient is φ = 667419008256.

The previous prime is 2121010212001. The next prime is 2121010212059. The reversal of 2121010212012 is 2102120101212.

It is a junction number, because it is equal to n+sod(n) for n = 2121010211982 and 2121010212000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1253538 + ... + 2411094.

It is an arithmetic number, because the mean of its divisors is an integer number (54548763192).

Almost surely, 2^{2121010212012} is an apocalyptic number.

It is an amenable number.

2121010212012 is an abundant number, since it is smaller than the sum of its proper divisors (3115671054420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121010212012 is a wasteful number, since it uses less digits than its factorization.

2121010212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157727 (or 1157725 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2121010212012 its reverse (2102120101212), we get a palindrome (4223130313224).

The spelling of 2121010212012 in words is "two trillion, one hundred twenty-one billion, ten million, two hundred twelve thousand, twelve".