211111201222 has 8 divisors (see below), whose sum is σ = 316672288416. Its totient is φ = 105553771752.

The previous prime is 211111201187. The next prime is 211111201229. The reversal of 211111201222 is 222102111112.

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

It is a junction number, because it is equal to n+sod(n) for n = 211111201196 and 211111201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211111201229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765273 + ... + 1003924.

It is an arithmetic number, because the mean of its divisors is an integer number (39584036052).

Almost surely, 2^211111201222 is an apocalyptic number.

211111201222 is a deficient number, since it is larger than the sum of its proper divisors (105561087194).

211111201222 is a wasteful number, since it uses less digits than its factorization.

211111201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828862.

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

Adding to 211111201222 its reverse (222102111112), we get a palindrome (433213312334).

The spelling of 211111201222 in words is "two hundred eleven billion, one hundred eleven million, two hundred one thousand, two hundred twenty-two".