222120111211 has 8 divisors (see below), whose sum is σ = 238785338880. Its totient is φ = 205952353128.

The previous prime is 222120111209. The next prime is 222120111221. The reversal of 222120111211 is 112111021222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222120111211 - 2¹ = 222120111209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222120111221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124366471 + ... + 124368256.

It is an arithmetic number, because the mean of its divisors is an integer number (29848167360).

Almost surely, 2^222120111211 is an apocalyptic number.

222120111211 is a deficient number, since it is larger than the sum of its proper divisors (16665227669).

222120111211 is a wasteful number, since it uses less digits than its factorization.

222120111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248734793.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222120111211 its reverse (112111021222), we get a palindrome (334231132433).

The spelling of 222120111211 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred eleven thousand, two hundred eleven".