1112201212121 has 8 divisors (see below), whose sum is σ = 1177674274080. Its totient is φ = 1046733645888.

The previous prime is 1112201212117. The next prime is 1112201212181. The reversal of 1112201212121 is 1212121022111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1112201212121 - 2² = 1112201212117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112201212121.

It is not an unprimeable number, because it can be changed into a prime (1112201212181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953591 + ... + 1770236.

It is an arithmetic number, because the mean of its divisors is an integer number (147209284260).

Almost surely, 2^{1112201212121} is an apocalyptic number.

It is an amenable number.

1112201212121 is a deficient number, since it is larger than the sum of its proper divisors (65473061959).

1112201212121 is a wasteful number, since it uses less digits than its factorization.

1112201212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747863.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1112201212121 its reverse (1212121022111), we get a palindrome (2324322234232).

The spelling of 1112201212121 in words is "one trillion, one hundred twelve billion, two hundred one million, two hundred twelve thousand, one hundred twenty-one".