11112122002121 has 16 divisors (see below), whose sum is σ = 12909194556288. Its totient is φ = 9367490851200.

The previous prime is 11112122002027. The next prime is 11112122002159. The reversal of 11112122002121 is 12120022121111.

11112122002121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11112122002121 - 2³⁰ = 11111048260297 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 11112122002121.

It is not an unprimeable number, because it can be changed into a prime (11112182002121) 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, 2403701 + ... + 5291693.

It is an arithmetic number, because the mean of its divisors is an integer number (806824659768).

Almost surely, 2^{11112122002121} is an apocalyptic number.

It is an amenable number.

11112122002121 is a deficient number, since it is larger than the sum of its proper divisors (1797072554167).

11112122002121 is an equidigital number, since it uses as much as digits as its factorization.

11112122002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897072.

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

Adding to 11112122002121 its reverse (12120022121111), we get a palindrome (23232144123232).

The spelling of 11112122002121 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-two million, two thousand, one hundred twenty-one".