2220122212111 has 4 divisors (see below), whose sum is σ = 2220151235472. Its totient is φ = 2220093188752.

The previous prime is 2220122212057. The next prime is 2220122212151. The reversal of 2220122212111 is 1112122210222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220122212111 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 (2220122212151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14396635 + ... + 14550028.

It is an arithmetic number, because the mean of its divisors is an integer number (555037808868).

Almost surely, 2^{2220122212111} is an apocalyptic number.

2220122212111 is a deficient number, since it is larger than the sum of its proper divisors (29023361).

2220122212111 is an equidigital number, since it uses as much as digits as its factorization.

2220122212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29023360.

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

Adding to 2220122212111 its reverse (1112122210222), we get a palindrome (3332244422333).

The spelling of 2220122212111 in words is "two trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twelve thousand, one hundred eleven".