2121011332111 has 8 divisors (see below), whose sum is σ = 2431659682080. Its totient is φ = 1812274664928.

The previous prime is 2121011332103. The next prime is 2121011332129. The reversal of 2121011332111 is 1112331101212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2121011332111 - 2³ = 2121011332103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121011335111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477918316 + ... + 477922753.

It is an arithmetic number, because the mean of its divisors is an integer number (303957460260).

Almost surely, 2^{2121011332111} is an apocalyptic number.

2121011332111 is a deficient number, since it is larger than the sum of its proper divisors (310648349969).

2121011332111 is an equidigital number, since it uses as much as digits as its factorization.

2121011332111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955841393.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 2121011332111 its reverse (1112331101212), we get a palindrome (3233342433323).

The spelling of 2121011332111 in words is "two trillion, one hundred twenty-one billion, eleven million, three hundred thirty-two thousand, one hundred eleven".