11001120112121 has 4 divisors (see below), whose sum is σ = 11001139209552. Its totient is φ = 11001101014692.

The previous prime is 11001120112079. The next prime is 11001120112153. The reversal of 11001120112121 is 12121102110011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11001120112121 - 2⁶ = 11001120112057 is a prime.

It is a super-2 number, since 2×11001120112121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001120112096 and 11001120112105.

It is not an unprimeable number, because it can be changed into a prime (11001120112621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8656871 + ... + 9845996.

It is an arithmetic number, because the mean of its divisors is an integer number (2750284802388).

Almost surely, 2^{11001120112121} is an apocalyptic number.

It is an amenable number.

11001120112121 is a deficient number, since it is larger than the sum of its proper divisors (19097431).

11001120112121 is an equidigital number, since it uses as much as digits as its factorization.

11001120112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19097430.

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

Adding to 11001120112121 its reverse (12121102110011), we get a palindrome (23122222222132).

The spelling of 11001120112121 in words is "eleven trillion, one billion, one hundred twenty million, one hundred twelve thousand, one hundred twenty-one".