1120201220121 has 16 divisors (see below), whose sum is σ = 1496872305600. Its totient is φ = 745167237120.

The previous prime is 1120201220113. The next prime is 1120201220143. The reversal of 1120201220121 is 1210221020211.

It is not a de Polignac number, because 1120201220121 - 2³ = 1120201220113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1120201220121.

It is not an unprimeable number, because it can be changed into a prime (1120201228121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2332761 + ... + 2771673.

It is an arithmetic number, because the mean of its divisors is an integer number (93554519100).

Almost surely, 2^{1120201220121} is an apocalyptic number.

It is an amenable number.

1120201220121 is a deficient number, since it is larger than the sum of its proper divisors (376671085479).

1120201220121 is a wasteful number, since it uses less digits than its factorization.

1120201220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440776.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1120201220121 its reverse (1210221020211), we get a palindrome (2330422240332).

The spelling of 1120201220121 in words is "one trillion, one hundred twenty billion, two hundred one million, two hundred twenty thousand, one hundred twenty-one".