11012120102121 has 16 divisors (see below), whose sum is σ = 16222458259584. Its totient is φ = 6609149659904.

The previous prime is 11012120102059. The next prime is 11012120102143. The reversal of 11012120102121 is 12120102121011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11012120102121 - 2²⁵ = 11012086547689 is a prime.

It is a super-3 number, since 3×11012120102121³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11012120102121.

It is not an unprimeable number, because it can be changed into a prime (11012120102021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4693997166 + ... + 4693999511.

It is an arithmetic number, because the mean of its divisors is an integer number (1013903641224).

Almost surely, 2^{11012120102121} is an apocalyptic number.

It is an amenable number.

11012120102121 is a deficient number, since it is larger than the sum of its proper divisors (5210338157463).

11012120102121 is a wasteful number, since it uses less digits than its factorization.

11012120102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9387996720.

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

Adding to 11012120102121 its reverse (12120102121011), we get a palindrome (23132222223132).

The spelling of 11012120102121 in words is "eleven trillion, twelve billion, one hundred twenty million, one hundred two thousand, one hundred twenty-one".