11121022012121 has 8 divisors (see below), whose sum is σ = 12710765265024. Its totient is φ = 9531535214880.

The previous prime is 11121022012091. The next prime is 11121022012129. The reversal of 11121022012121 is 12121022012111.

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

It is not a de Polignac number, because 11121022012121 - 2³⁸ = 10846144105177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11121022012121.

It is not an unprimeable number, because it can be changed into a prime (11121022012129) 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, 64020980 + ... + 64194453.

It is an arithmetic number, because the mean of its divisors is an integer number (1588845658128).

Almost surely, 2^{11121022012121} is an apocalyptic number.

It is an amenable number.

11121022012121 is a deficient number, since it is larger than the sum of its proper divisors (1589743252903).

11121022012121 is a wasteful number, since it uses less digits than its factorization.

11121022012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128227831.

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

Adding to 11121022012121 its reverse (12121022012111), we get a palindrome (23242044024232).

The spelling of 11121022012121 in words is "eleven trillion, one hundred twenty-one billion, twenty-two million, twelve thousand, one hundred twenty-one".