1220112111101 has 16 divisors (see below), whose sum is σ = 1394579592000. Its totient is φ = 1057476972288.

The previous prime is 1220112111089. The next prime is 1220112111133. The reversal of 1220112111101 is 1011112110221.

It is a cyclic number.

It is not a de Polignac number, because 1220112111101 - 2¹⁴ = 1220112094717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220112111601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6495551 + ... + 6680748.

It is an arithmetic number, because the mean of its divisors is an integer number (87161224500).

Almost surely, 2^{1220112111101} is an apocalyptic number.

It is an amenable number.

1220112111101 is a deficient number, since it is larger than the sum of its proper divisors (174467480899).

1220112111101 is a wasteful number, since it uses less digits than its factorization.

1220112111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13176748.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1220112111101 its reverse (1011112110221), we get a palindrome (2231224221322).

The spelling of 1220112111101 in words is "one trillion, two hundred twenty billion, one hundred twelve million, one hundred eleven thousand, one hundred one".