11020021202121 has 8 divisors (see below), whose sum is σ = 14694349849920. Its totient is φ = 7346186677872.

The previous prime is 11020021202107. The next prime is 11020021202123. The reversal of 11020021202121 is 12120212002011.

11020021202121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11020021202121 - 2²⁹ = 11019484331209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11020021202121.

It is not an unprimeable number, because it can be changed into a prime (11020021202123) 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, 123478845 + ... + 123568058.

It is an arithmetic number, because the mean of its divisors is an integer number (1836793731240).

Almost surely, 2^{11020021202121} is an apocalyptic number.

It is an amenable number.

11020021202121 is a deficient number, since it is larger than the sum of its proper divisors (3674328647799).

11020021202121 is a wasteful number, since it uses less digits than its factorization.

11020021202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247061775.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11020021202121 its reverse (12120212002011), we get a palindrome (23140233204132).

The spelling of 11020021202121 in words is "eleven trillion, twenty billion, twenty-one million, two hundred two thousand, one hundred twenty-one".