2220122221111 has 4 divisors (see below), whose sum is σ = 2296678159800. Its totient is φ = 2143566282424.

The previous prime is 2220122221103. The next prime is 2220122221153. The reversal of 2220122221111 is 1111222210222.

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 2220122221111 - 2³ = 2220122221103 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 (2220122221171) 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 3 ways as a sum of consecutive naturals, for example, 38277969301 + ... + 38277969358.

It is an arithmetic number, because the mean of its divisors is an integer number (574169539950).

Almost surely, 2^{2220122221111} is an apocalyptic number.

2220122221111 is a deficient number, since it is larger than the sum of its proper divisors (76555938689).

2220122221111 is an equidigital number, since it uses as much as digits as its factorization.

2220122221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76555938688.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2220122221111 its reverse (1111222210222), we get a palindrome (3331344431333).

The spelling of 2220122221111 in words is "two trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred eleven".