211112100222222 has 8 divisors (see below), whose sum is σ = 422224200444456. Its totient is φ = 70370700074072.

The previous prime is 211112100222187. The next prime is 211112100222223. The reversal of 211112100222222 is 222222001211112.

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

211112100222222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112100222223) 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, 17592675018513 + ... + 17592675018524.

It is an arithmetic number, because the mean of its divisors is an integer number (52778025055557).

Almost surely, 2^{211112100222222} is an apocalyptic number.

211112100222222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211112100222222 is a wasteful number, since it uses less digits than its factorization.

211112100222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35185350037042.

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

Adding to 211112100222222 its reverse (222222001211112), we get a palindrome (433334101433334).

The spelling of 211112100222222 in words is "two hundred eleven trillion, one hundred twelve billion, one hundred million, two hundred twenty-two thousand, two hundred twenty-two".