2220121323111 has 16 divisors (see below), whose sum is σ = 3040215672800. Its totient is φ = 1440055231488.

The previous prime is 2220121323109. The next prime is 2220121323131. The reversal of 2220121323111 is 1113231210222.

2220121323111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2220121323111 - 2¹ = 2220121323109 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 (2220121323131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8981055 + ... + 9224943.

It is an arithmetic number, because the mean of its divisors is an integer number (190013479550).

Almost surely, 2^{2220121323111} is an apocalyptic number.

2220121323111 is a deficient number, since it is larger than the sum of its proper divisors (820094349689).

2220121323111 is a wasteful number, since it uses less digits than its factorization.

2220121323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325938.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2220121323111 its reverse (1113231210222), we get a palindrome (3333352533333).

The spelling of 2220121323111 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, three hundred twenty-three thousand, one hundred eleven".