11111011102121 has 8 divisors (see below), whose sum is σ = 12734683214400. Its totient is φ = 9496435192848.

The previous prime is 11111011102117. The next prime is 11111011102141. The reversal of 11111011102121 is 12120111011111.

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 11111011102121 - 2² = 11111011102117 is a prime.

It is a super-2 number, since 2×11111011102121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111011102096 and 11111011102105.

It is not an unprimeable number, because it can be changed into a prime (11111011102141) 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, 2274048131 + ... + 2274053016.

It is an arithmetic number, because the mean of its divisors is an integer number (1591835401800).

Almost surely, 2^{11111011102121} is an apocalyptic number.

It is an amenable number.

11111011102121 is a deficient number, since it is larger than the sum of its proper divisors (1623672112279).

11111011102121 is an equidigital number, since it uses as much as digits as its factorization.

11111011102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4548101503.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 11111011102121 its reverse (12120111011111), we get a palindrome (23231122113232).

The spelling of 11111011102121 in words is "eleven trillion, one hundred eleven billion, eleven million, one hundred two thousand, one hundred twenty-one".