222120202122111 has 16 divisors (see below), whose sum is σ = 304167436532064. Its totient is φ = 144076625846784.

The previous prime is 222120202122089. The next prime is 222120202122253. The reversal of 222120202122111 is 111221202021222.

It is not a de Polignac number, because 222120202122111 - 2²¹ = 222120200024959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120202122011) 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, 2703451 + ... + 21249683.

It is an arithmetic number, because the mean of its divisors is an integer number (19010464783254).

Almost surely, 2^{222120202122111} is an apocalyptic number.

222120202122111 is a deficient number, since it is larger than the sum of its proper divisors (82047234409953).

222120202122111 is a wasteful number, since it uses less digits than its factorization.

222120202122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18654170.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222120202122111 its reverse (111221202021222), we get a palindrome (333341404143333).

The spelling of 222120202122111 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred two million, one hundred twenty-two thousand, one hundred eleven".