2121110101012 has 24 divisors (see below), whose sum is σ = 4340876488256. Its totient is φ = 887906553408.

The previous prime is 2121110101001. The next prime is 2121110101051. The reversal of 2121110101012 is 2101010111212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2121110100983 and 2121110101001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880858473 + ... + 880860880.

Almost surely, 2^{2121110101012} is an apocalyptic number.

It is an amenable number.

2121110101012 is an abundant number, since it is smaller than the sum of its proper divisors (2219766387244).

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

2121110101012 is a wasteful number, since it uses less digits than its factorization.

2121110101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761719407 (or 1761719405 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2121110101012 its reverse (2101010111212), we get a palindrome (4222120212224).

The spelling of 2121110101012 in words is "two trillion, one hundred twenty-one billion, one hundred ten million, one hundred one thousand, twelve".