11021021112121 has 8 divisors (see below), whose sum is σ = 11145038486400. Its totient is φ = 10897007864160.

The previous prime is 11021021112109. The next prime is 11021021112169. The reversal of 11021021112121 is 12121112012011.

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 11021021112121 - 2⁵ = 11021021112089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021021112095 and 11021021112104.

It is not an unprimeable number, because it can be changed into a prime (11021021142121) 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, 4506636 + ... + 6507826.

It is an arithmetic number, because the mean of its divisors is an integer number (1393129810800).

Almost surely, 2^{11021021112121} is an apocalyptic number.

It is an amenable number.

11021021112121 is a deficient number, since it is larger than the sum of its proper divisors (124017374279).

11021021112121 is an equidigital number, since it uses as much as digits as its factorization.

11021021112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063159.

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

Adding to 11021021112121 its reverse (12121112012011), we get a palindrome (23142133124132).

The spelling of 11021021112121 in words is "eleven trillion, twenty-one billion, twenty-one million, one hundred twelve thousand, one hundred twenty-one".