2121001110011 has 24 divisors (see below), whose sum is σ = 2599445898000. Its totient is φ = 1720790313984.

The previous prime is 2121001109971. The next prime is 2121001110029. The reversal of 2121001110011 is 1100111001212.

It is not a de Polignac number, because 2121001110011 - 2⁶ = 2121001109947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121001109974 and 2121001110001.

It is not an unprimeable number, because it can be changed into a prime (2121001110311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42155 + ... + 2060043.

It is an arithmetic number, because the mean of its divisors is an integer number (108310245750).

Almost surely, 2^{2121001110011} is an apocalyptic number.

2121001110011 is a deficient number, since it is larger than the sum of its proper divisors (478444787989).

2121001110011 is a wasteful number, since it uses less digits than its factorization.

2121001110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019051 (or 2019044 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2121001110011 its reverse (1100111001212), we get a palindrome (3221112111223).

The spelling of 2121001110011 in words is "two trillion, one hundred twenty-one billion, one million, one hundred ten thousand, eleven".