1220200111101 has 16 divisors (see below), whose sum is σ = 1715692428800. Its totient is φ = 769243810608.

The previous prime is 1220200111099. The next prime is 1220200111121. The reversal of 1220200111101 is 1011110020221.

It is not a de Polignac number, because 1220200111101 - 2¹ = 1220200111099 is a prime.

It is a super-2 number, since 2×1220200111101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220200111121) 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, 19536481 + ... + 19598838.

It is an arithmetic number, because the mean of its divisors is an integer number (107230776800).

Almost surely, 2^{1220200111101} is an apocalyptic number.

It is an amenable number.

1220200111101 is a deficient number, since it is larger than the sum of its proper divisors (495492317699).

1220200111101 is a wasteful number, since it uses less digits than its factorization.

1220200111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39135888.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1220200111101 its reverse (1011110020221), we get a palindrome (2231310131322).

The spelling of 1220200111101 in words is "one trillion, two hundred twenty billion, two hundred million, one hundred eleven thousand, one hundred one".