1220110010121 has 16 divisors (see below), whose sum is σ = 1631816858880. Its totient is φ = 810907025280.

The previous prime is 1220110010117. The next prime is 1220110010183. The reversal of 1220110010121 is 1210100110221.

It is not a de Polignac number, because 1220110010121 - 2² = 1220110010117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220110010097 and 1220110010106.

It is not an unprimeable number, because it can be changed into a prime (1220110014121) 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, 2063536 + ... + 2588126.

It is an arithmetic number, because the mean of its divisors is an integer number (101988553680).

Almost surely, 2^{1220110010121} is an apocalyptic number.

It is an amenable number.

1220110010121 is a deficient number, since it is larger than the sum of its proper divisors (411706848759).

1220110010121 is a wasteful number, since it uses less digits than its factorization.

1220110010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526976.

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

Adding to 1220110010121 its reverse (1210100110221), we get a palindrome (2430210120342).

It can be divided in two parts, 12201100 and 10121, that added together give a palindrome (12211221).

The spelling of 1220110010121 in words is "one trillion, two hundred twenty billion, one hundred ten million, ten thousand, one hundred twenty-one".