2121420323211 has 8 divisors (see below), whose sum is σ = 3232640492544. Its totient is φ = 1212240184680.

The previous prime is 2121420323177. The next prime is 2121420323219. The reversal of 2121420323211 is 1123230241212.

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

It is not a de Polignac number, because 2121420323211 - 2¹³ = 2121420315019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121420323219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50510007675 + ... + 50510007716.

It is an arithmetic number, because the mean of its divisors is an integer number (404080061568).

Almost surely, 2^{2121420323211} is an apocalyptic number.

2121420323211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2121420323211 is a deficient number, since it is larger than the sum of its proper divisors (1111220169333).

2121420323211 is a wasteful number, since it uses less digits than its factorization.

2121420323211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101020015401.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2121420323211 its reverse (1123230241212), we get a palindrome (3244650564423).

The spelling of 2121420323211 in words is "two trillion, one hundred twenty-one billion, four hundred twenty million, three hundred twenty-three thousand, two hundred eleven".