11011110220121 has 8 divisors (see below), whose sum is σ = 12012169341600. Its totient is φ = 10010059282240.

The previous prime is 11011110220087. The next prime is 11011110220139. The reversal of 11011110220121 is 12102201111011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011110220121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011110220096 and 11011110220105.

It is not an unprimeable number, because it can be changed into a prime (11011110226121) 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, 959390 + ... + 4789848.

It is an arithmetic number, because the mean of its divisors is an integer number (1501521167700).

Almost surely, 2^{11011110220121} is an apocalyptic number.

11011110220121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11011110220121 is a deficient number, since it is larger than the sum of its proper divisors (1001059121479).

11011110220121 is a wasteful number, since it uses less digits than its factorization.

11011110220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091799.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11011110220121 its reverse (12102201111011), we get a palindrome (23113311331132).

The spelling of 11011110220121 in words is "eleven trillion, eleven billion, one hundred ten million, two hundred twenty thousand, one hundred twenty-one".