222000211121 has 4 divisors (see below), whose sum is σ = 239077150452. Its totient is φ = 204923271792.

The previous prime is 222000211117. The next prime is 222000211151. The reversal of 222000211121 is 121112000222.

222000211121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30997123600 + 191003087521 = 176060^2 + 437039^2 .

It is a cyclic number.

It is not a de Polignac number, because 222000211121 - 2² = 222000211117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222000211096 and 222000211105.

It is not an unprimeable number, because it can be changed into a prime (222000211151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8538469646 + ... + 8538469671.

It is an arithmetic number, because the mean of its divisors is an integer number (59769287613).

Almost surely, 2^222000211121 is an apocalyptic number.

It is an amenable number.

222000211121 is a deficient number, since it is larger than the sum of its proper divisors (17076939331).

222000211121 is a wasteful number, since it uses less digits than its factorization.

222000211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17076939330.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222000211121 its reverse (121112000222), we get a palindrome (343112211343).

The spelling of 222000211121 in words is "two hundred twenty-two billion, two hundred eleven thousand, one hundred twenty-one".