11222200121121 has 32 divisors (see below), whose sum is σ = 18522780364800. Its totient is φ = 6656624177040.

The previous prime is 11222200121117. The next prime is 11222200121123. The reversal of 11222200121121 is 12112100222211.

11222200121121 is a `hidden beast` number, since 1 + 1 + 222 + 200 + 121 + 121 = 666.

It is not a de Polignac number, because 11222200121121 - 2² = 11222200121117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11222200121094 and 11222200121103.

It is not an unprimeable number, because it can be changed into a prime (11222200121123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401956101 + ... + 401984018.

It is an arithmetic number, because the mean of its divisors is an integer number (578836886400).

Almost surely, 2^{11222200121121} is an apocalyptic number.

11222200121121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11222200121121 is a deficient number, since it is larger than the sum of its proper divisors (7300580243679).

11222200121121 is a wasteful number, since it uses less digits than its factorization.

11222200121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803940186 (or 803940180 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11222200121121 its reverse (12112100222211), we get a palindrome (23334300343332).

The spelling of 11222200121121 in words is "eleven trillion, two hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, one hundred twenty-one".