11121100121001 has 32 divisors (see below), whose sum is σ = 16519819800960. Its totient is φ = 6607596893184.

The previous prime is 11121100120979. The next prime is 11121100121041. The reversal of 11121100121001 is 10012100112111.

11121100121001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11121100121001 - 2⁷ = 11121100120873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121100121041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56591025 + ... + 56787201.

It is an arithmetic number, because the mean of its divisors is an integer number (516244368780).

Almost surely, 2^{11121100121001} is an apocalyptic number.

It is an amenable number.

11121100121001 is a deficient number, since it is larger than the sum of its proper divisors (5398719679959).

11121100121001 is a wasteful number, since it uses less digits than its factorization.

11121100121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246345.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11121100121001 its reverse (10012100112111), we get a palindrome (21133200233112).

The spelling of 11121100121001 in words is "eleven trillion, one hundred twenty-one billion, one hundred million, one hundred twenty-one thousand, one".