11202122220121 has 16 divisors (see below), whose sum is σ = 12899155651200. Its totient is φ = 9529320924288.

The previous prime is 11202122220061. The next prime is 11202122220169. The reversal of 11202122220121 is 12102222120211.

It is a cyclic number.

It is not a de Polignac number, because 11202122220121 - 2⁹ = 11202122219609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11202122220721) 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, 649701 + ... + 4777693.

It is an arithmetic number, because the mean of its divisors is an integer number (806197228200).

Almost surely, 2^{11202122220121} is an apocalyptic number.

It is an amenable number.

11202122220121 is a deficient number, since it is larger than the sum of its proper divisors (1697033431079).

11202122220121 is a wasteful number, since it uses less digits than its factorization.

11202122220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130928.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11202122220121 its reverse (12102222120211), we get a palindrome (23304344340332).

The spelling of 11202122220121 in words is "eleven trillion, two hundred two billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty-one".