11112210022121 has 8 divisors (see below), whose sum is σ = 12596837272320. Its totient is φ = 9717560181072.

The previous prime is 11112210022103. The next prime is 11112210022189. The reversal of 11112210022121 is 12122001221111.

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 11112210022121 - 2¹⁸ = 11112209759977 is a prime.

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 11112210022121.

It is not an unprimeable number, because it can be changed into a prime (11112210022421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22494352025 + ... + 22494352518.

It is an arithmetic number, because the mean of its divisors is an integer number (1574604659040).

Almost surely, 2^{11112210022121} is an apocalyptic number.

It is an amenable number.

11112210022121 is a deficient number, since it is larger than the sum of its proper divisors (1484627250199).

11112210022121 is a wasteful number, since it uses less digits than its factorization.

11112210022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44988704575.

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

Adding to 11112210022121 its reverse (12122001221111), we get a palindrome (23234211243232).

The spelling of 11112210022121 in words is "eleven trillion, one hundred twelve billion, two hundred ten million, twenty-two thousand, one hundred twenty-one".