11202121000111 has 8 divisors (see below), whose sum is σ = 11606930620560. Its totient is φ = 10804476151872.

The previous prime is 11202121000069. The next prime is 11202121000117. The reversal of 11202121000111 is 11100012120211.

It is a happy number.

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 11202121000111 - 2¹⁷ = 11202120869039 is a prime.

It is a super-2 number, since 2×11202121000111² (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 = 11202121000091 and 11202121000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202121000117) 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, 1791189870 + ... + 1791196123.

It is an arithmetic number, because the mean of its divisors is an integer number (1450866327570).

Almost surely, 2^{11202121000111} is an apocalyptic number.

11202121000111 is a deficient number, since it is larger than the sum of its proper divisors (404809620449).

11202121000111 is an equidigital number, since it uses as much as digits as its factorization.

11202121000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582386105.

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

Adding to 11202121000111 its reverse (11100012120211), we get a palindrome (22302133120322).

The spelling of 11202121000111 in words is "eleven trillion, two hundred two billion, one hundred twenty-one million, one hundred eleven", and thus it is an aban number.