1220141211111 has 6 divisors (see below), whose sum is σ = 1762426193840. Its totient is φ = 813427474068.

The previous prime is 1220141211109. The next prime is 1220141211119. The reversal of 1220141211111 is 1111121410221.

It is not a de Polignac number, because 1220141211111 - 2¹ = 1220141211109 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 (1220141211119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67785622831 + ... + 67785622848.

Almost surely, 2^{1220141211111} is an apocalyptic number.

1220141211111 is a deficient number, since it is larger than the sum of its proper divisors (542284982729).

1220141211111 is a wasteful number, since it uses less digits than its factorization.

1220141211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135571245685 (or 135571245682 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 1220141211111 its reverse (1111121410221), we get a palindrome (2331262621332).

The spelling of 1220141211111 in words is "one trillion, two hundred twenty billion, one hundred forty-one million, two hundred eleven thousand, one hundred eleven".