222120202221121 has 16 divisors (see below), whose sum is σ = 223880992917120. Its totient is φ = 220361781507840.

The previous prime is 222120202221097. The next prime is 222120202221157. The reversal of 222120202221121 is 121122202021222.

It is a cyclic number.

It is not a de Polignac number, because 222120202221121 - 2¹⁷ = 222120202090049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222120202221092 and 222120202221101.

It is not an unprimeable number, because it can be changed into a prime (222120202221221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1454951625 + ... + 1455104281.

It is an arithmetic number, because the mean of its divisors is an integer number (13992562057320).

Almost surely, 2^{222120202221121} is an apocalyptic number.

It is an amenable number.

222120202221121 is a deficient number, since it is larger than the sum of its proper divisors (1760790695999).

222120202221121 is a wasteful number, since it uses less digits than its factorization.

222120202221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160344.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222120202221121 its reverse (121122202021222), we get a palindrome (343242404242343).

The spelling of 222120202221121 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty-one".