1112020202121 has 32 divisors (see below), whose sum is σ = 1578223987200. Its totient is φ = 694496592000.

The previous prime is 1112020202099. The next prime is 1112020202129. The reversal of 1112020202121 is 1212020202111.

It is not a de Polignac number, because 1112020202121 - 2⁵ = 1112020202089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112020202121.

It is not an unprimeable number, because it can be changed into a prime (1112020202129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1709085 + ... + 2268261.

It is an arithmetic number, because the mean of its divisors is an integer number (49319499600).

Almost surely, 2^{1112020202121} is an apocalyptic number.

It is an amenable number.

1112020202121 is a deficient number, since it is larger than the sum of its proper divisors (466203785079).

1112020202121 is a wasteful number, since it uses less digits than its factorization.

1112020202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559589.

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

Adding to 1112020202121 its reverse (1212020202111), we get a palindrome (2324040404232).

The spelling of 1112020202121 in words is "one trillion, one hundred twelve billion, twenty million, two hundred two thousand, one hundred twenty-one".