2122020311 has 4 divisors (see below), whose sum is σ = 2126944224. Its totient is φ = 2117096400.

The previous prime is 2122020293. The next prime is 2122020323. The reversal of 2122020311 is 1130202212.

It is a happy number.

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 2122020311 - 2¹⁸ = 2121758167 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 (2122020361) 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 3 ways as a sum of consecutive naturals, for example, 2461310 + ... + 2462171.

It is an arithmetic number, because the mean of its divisors is an integer number (531736056).

Almost surely, 2^2122020311 is an apocalyptic number.

2122020311 is a deficient number, since it is larger than the sum of its proper divisors (4923913).

2122020311 is an equidigital number, since it uses as much as digits as its factorization.

2122020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4923912.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2122020311 is about 46065.3916839963. The cubic root of 2122020311 is about 1285.0396029117.

Adding to 2122020311 its reverse (1130202212), we get a palindrome (3252222523).

The spelling of 2122020311 in words is "two billion, one hundred twenty-two million, twenty thousand, three hundred eleven".