1122220201111 has 4 divisors (see below), whose sum is σ = 1171012383792. Its totient is φ = 1073428018432.

The previous prime is 1122220201099. The next prime is 1122220201139. The reversal of 1122220201111 is 1111020222211.

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 1122220201111 - 2⁹ = 1122220200599 is a prime.

It is a super-2 number, since 2×1122220201111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122220201211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24396091306 + ... + 24396091351.

It is an arithmetic number, because the mean of its divisors is an integer number (292753095948).

Almost surely, 2^{1122220201111} is an apocalyptic number.

1122220201111 is a deficient number, since it is larger than the sum of its proper divisors (48792182681).

1122220201111 is an equidigital number, since it uses as much as digits as its factorization.

1122220201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48792182680.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1122220201111 its reverse (1111020222211), we get a palindrome (2233240423322).

The spelling of 1122220201111 in words is "one trillion, one hundred twenty-two billion, two hundred twenty million, two hundred one thousand, one hundred eleven".