22112211212222 has 8 divisors (see below), whose sum is σ = 33168510755472. Its totient is φ = 11056040960400.

The previous prime is 22112211212209. The next prime is 22112211212227. The reversal of 22112211212222 is 22221211221122.

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

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 (22112211212227) 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, 31894154 + ... + 32580077.

It is an arithmetic number, because the mean of its divisors is an integer number (4146063844434).

Almost surely, 2^{22112211212222} is an apocalyptic number.

22112211212222 is a deficient number, since it is larger than the sum of its proper divisors (11056299543250).

22112211212222 is a wasteful number, since it uses less digits than its factorization.

22112211212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64645714.

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

Adding to 22112211212222 its reverse (22221211221122), we get a palindrome (44333422433344).

The spelling of 22112211212222 in words is "twenty-two trillion, one hundred twelve billion, two hundred eleven million, two hundred twelve thousand, two hundred twenty-two".