11121202021101 has 4 divisors (see below), whose sum is σ = 14828269361472. Its totient is φ = 7414134680732.

The previous prime is 11121202021093. The next prime is 11121202021177. The reversal of 11121202021101 is 10112020212111.

It is a happy number.

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 11121202021101 - 2³ = 11121202021093 is a prime.

It is a super-2 number, since 2×11121202021101² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121202021001) 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, 1853533670181 + ... + 1853533670186.

It is an arithmetic number, because the mean of its divisors is an integer number (3707067340368).

Almost surely, 2^{11121202021101} is an apocalyptic number.

It is an amenable number.

11121202021101 is a deficient number, since it is larger than the sum of its proper divisors (3707067340371).

11121202021101 is an equidigital number, since it uses as much as digits as its factorization.

11121202021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707067340370.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11121202021101 its reverse (10112020212111), we get a palindrome (21233222233212).

The spelling of 11121202021101 in words is "eleven trillion, one hundred twenty-one billion, two hundred two million, twenty-one thousand, one hundred one".