1220110201121 has 12 divisors (see below), whose sum is σ = 1408354490496. Its totient is φ = 1035454141200.

The previous prime is 1220110201081. The next prime is 1220110201129. The reversal of 1220110201121 is 1211020110221.

It is a de Polignac number, because none of the positive numbers 2^k-1220110201121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220110201096 and 1220110201105.

It is not an unprimeable number, because it can be changed into a prime (1220110201129) 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, 8471945 + ... + 8614758.

It is an arithmetic number, because the mean of its divisors is an integer number (117362874208).

Almost surely, 2^{1220110201121} is an apocalyptic number.

It is an amenable number.

1220110201121 is a deficient number, since it is larger than the sum of its proper divisors (188244289375).

1220110201121 is an equidigital number, since it uses as much as digits as its factorization.

1220110201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17086912 (or 17086811 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220110201121 its reverse (1211020110221), we get a palindrome (2431130311342).

The spelling of 1220110201121 in words is "one trillion, two hundred twenty billion, one hundred ten million, two hundred one thousand, one hundred twenty-one".