222221012111211 has 8 divisors (see below), whose sum is σ = 304302647215504. Its totient is φ = 144143359207200.

The previous prime is 222221012111209. The next prime is 222221012111251. The reversal of 222221012111211 is 112111210122222.

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

It is not a de Polignac number, because 222221012111211 - 2¹ = 222221012111209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221012111251) 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, 1000995549940 + ... + 1000995550161.

It is an arithmetic number, because the mean of its divisors is an integer number (38037830901938).

Almost surely, 2^{222221012111211} is an apocalyptic number.

222221012111211 is a deficient number, since it is larger than the sum of its proper divisors (82081635104293).

222221012111211 is a wasteful number, since it uses less digits than its factorization.

222221012111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001991100141.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 222221012111211 its reverse (112111210122222), we get a palindrome (334332222233433).

The spelling of 222221012111211 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twelve million, one hundred eleven thousand, two hundred eleven".