11122020012121 has 16 divisors (see below), whose sum is σ = 11252781820800. Its totient is φ = 10991677536000.

The previous prime is 11122020012107. The next prime is 11122020012133. The reversal of 11122020012121 is 12121002022111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11122020012121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11122020012095 and 11122020012104.

It is not an unprimeable number, because it can be changed into a prime (11122020012721) 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, 158871436 + ... + 158941426.

It is an arithmetic number, because the mean of its divisors is an integer number (703298863800).

Almost surely, 2^{11122020012121} is an apocalyptic number.

It is an amenable number.

11122020012121 is a deficient number, since it is larger than the sum of its proper divisors (130761808679).

11122020012121 is a wasteful number, since it uses less digits than its factorization.

11122020012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72960.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11122020012121 its reverse (12121002022111), we get a palindrome (23243022034232).

The spelling of 11122020012121 in words is "eleven trillion, one hundred twenty-two billion, twenty million, twelve thousand, one hundred twenty-one".