11211222212222 has 16 divisors (see below), whose sum is σ = 17042896032000. Its totient is φ = 5530366796760.

The previous prime is 11211222212173. The next prime is 11211222212227. The reversal of 11211222212222 is 22221222211211.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211222212227) 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, 27277472 + ... + 27685427.

It is an arithmetic number, because the mean of its divisors is an integer number (1065181002000).

Almost surely, 2^{11211222212222} is an apocalyptic number.

11211222212222 is a deficient number, since it is larger than the sum of its proper divisors (5831673819778).

11211222212222 is a wasteful number, since it uses less digits than its factorization.

11211222212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54964271.

The product of its digits is 512, while the sum is 23.

Adding to 11211222212222 its reverse (22221222211211), we get a palindrome (33432444423433).

The spelling of 11211222212222 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-two".