2121012230011 has 32 divisors (see below), whose sum is σ = 2230346664000. Its totient is φ = 2014328483328.

The previous prime is 2121012229933. The next prime is 2121012230017. The reversal of 2121012230011 is 1100322101212.

It is a cyclic number.

It is not a de Polignac number, because 2121012230011 - 2⁹ = 2121012229499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121012230017) 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, 611417185 + ... + 611420653.

It is an arithmetic number, because the mean of its divisors is an integer number (69698333250).

Almost surely, 2^{2121012230011} is an apocalyptic number.

2121012230011 is a deficient number, since it is larger than the sum of its proper divisors (109334433989).

2121012230011 is a wasteful number, since it uses less digits than its factorization.

2121012230011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623.

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

Adding to 2121012230011 its reverse (1100322101212), we get a palindrome (3221334331223).

The spelling of 2121012230011 in words is "two trillion, one hundred twenty-one billion, twelve million, two hundred thirty thousand, eleven".