222444404444222 has 16 divisors (see below), whose sum is σ = 340775398978560. Its totient is φ = 108852736768248.

The previous prime is 222444404444069. The next prime is 222444404444239.

222444404444222 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×222444404444222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29605298 + ... + 36350549.

It is an arithmetic number, because the mean of its divisors is an integer number (21298462436160).

Almost surely, 2^{222444404444222} is an apocalyptic number.

222444404444222 is a deficient number, since it is larger than the sum of its proper divisors (118330994534338).

222444404444222 is a wasteful number, since it uses less digits than its factorization.

222444404444222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65991775.

The product of its (nonzero) digits is 4194304, while the sum is 44.

It can be divided in two parts, 22244440 and 4444222, that added together give a palindrome (26688662).

The spelling of 222444404444222 in words is "two hundred twenty-two trillion, four hundred forty-four billion, four hundred four million, four hundred forty-four thousand, two hundred twenty-two".