11020121020121 has 8 divisors (see below), whose sum is σ = 11499531043200. Its totient is φ = 10540733857632.

The previous prime is 11020121020109. The next prime is 11020121020151. The reversal of 11020121020121 is 12102012102011.

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 11020121020121 - 2¹⁴ = 11020121003737 is a prime.

It is a super-2 number, since 2×11020121020121² (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 = 11020121020096 and 11020121020105.

It is not an unprimeable number, because it can be changed into a prime (11020121020151) 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, 4726421 + ... + 6661778.

It is an arithmetic number, because the mean of its divisors is an integer number (1437441380400).

Almost surely, 2^{11020121020121} is an apocalyptic number.

It is an amenable number.

11020121020121 is a deficient number, since it is larger than the sum of its proper divisors (479410023079).

11020121020121 is a wasteful number, since it uses less digits than its factorization.

11020121020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11430295.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11020121020121 its reverse (12102012102011), we get a palindrome (23122133122132).

The spelling of 11020121020121 in words is "eleven trillion, twenty billion, one hundred twenty-one million, twenty thousand, one hundred twenty-one".