11121012002101 has 4 divisors (see below), whose sum is σ = 11123534349900. Its totient is φ = 11118489654304.

The previous prime is 11121012002083. The next prime is 11121012002129. The reversal of 11121012002101 is 10120021012111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2478152866225 + 8642859135876 = 1574215^2 + 2939874^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121012002101 - 2¹⁷ = 11121011871029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121012002161) 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, 1261167286 + ... + 1261176103.

It is an arithmetic number, because the mean of its divisors is an integer number (2780883587475).

Almost surely, 2^{11121012002101} is an apocalyptic number.

It is an amenable number.

11121012002101 is a deficient number, since it is larger than the sum of its proper divisors (2522347799).

11121012002101 is an equidigital number, since it uses as much as digits as its factorization.

11121012002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522347798.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11121012002101 its reverse (10120021012111), we get a palindrome (21241033014212).

The spelling of 11121012002101 in words is "eleven trillion, one hundred twenty-one billion, twelve million, two thousand, one hundred one".