222212212222 has 32 divisors (see below), whose sum is σ = 447532291584. Its totient is φ = 79916479200.

The previous prime is 222212212193. The next prime is 222212212283.

222212212222 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

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

It is a junction number, because it is equal to n+sod(n) for n = 222212212193 and 222212212202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55495554 + ... + 55499557.

It is an arithmetic number, because the mean of its divisors is an integer number (13985384112).

Almost surely, 2^222212212222 is an apocalyptic number.

222212212222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222212212222 is an abundant number, since it is smaller than the sum of its proper divisors (225320079362).

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

222212212222 is a wasteful number, since it uses less digits than its factorization.

222212212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110995144.

The product of its digits is 1024, while the sum is 22.

Multiplying 222212212222 by its sum of digits (22), we get a palindrome (4888668668884).

It can be divided in two parts, 222212 and 212222, that added together give a palindrome (434434).

The spelling of 222212212222 in words is "two hundred twenty-two billion, two hundred twelve million, two hundred twelve thousand, two hundred twenty-two".