2220122121111 has 12 divisors (see below), whose sum is σ = 3206883438720. Its totient is φ = 1480062779520.

The previous prime is 2220122121103. The next prime is 2220122121131. The reversal of 2220122121111 is 1111212210222.

2220122121111 is a `hidden beast` number, since 2 + 220 + 1 + 221 + 211 + 11 = 666.

It is not a de Polignac number, because 2220122121111 - 2³ = 2220122121103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220122121131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 777975 + ... + 2246216.

It is an arithmetic number, because the mean of its divisors is an integer number (267240286560).

Almost surely, 2^{2220122121111} is an apocalyptic number.

2220122121111 is a deficient number, since it is larger than the sum of its proper divisors (986761317609).

2220122121111 is a wasteful number, since it uses less digits than its factorization.

2220122121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105766 (or 3105763 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2220122121111 its reverse (1111212210222), we get a palindrome (3331334331333).

The spelling of 2220122121111 in words is "two trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred eleven".