2121332201011 has 4 divisors (see below), whose sum is σ = 2127112398112. Its totient is φ = 2115552003912.

The previous prime is 2121332200979. The next prime is 2121332201059. The reversal of 2121332201011 is 1101022331212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2121332201011 - 2⁵ = 2121332200979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121332201011.

It is not an unprimeable number, because it can be changed into a prime (2121332201411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2890098000 + ... + 2890098733.

It is an arithmetic number, because the mean of its divisors is an integer number (531778099528).

Almost surely, 2^{2121332201011} is an apocalyptic number.

2121332201011 is a deficient number, since it is larger than the sum of its proper divisors (5780197101).

2121332201011 is an equidigital number, since it uses as much as digits as its factorization.

2121332201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780197100.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2121332201011 its reverse (1101022331212), we get a palindrome (3222354532223).

The spelling of 2121332201011 in words is "two trillion, one hundred twenty-one billion, three hundred thirty-two million, two hundred one thousand, eleven".