222100022 has 4 divisors (see below), whose sum is σ = 333150036. Its totient is φ = 111050010.

The previous prime is 222099991. The next prime is 222100037. The reversal of 222100022 is 220001222.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 222099976 and 222100012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55525004 + ... + 55525007.

It is an arithmetic number, because the mean of its divisors is an integer number (83287509).

Almost surely, 2^222100022 is an apocalyptic number.

222100022 is a deficient number, since it is larger than the sum of its proper divisors (111050014).

222100022 is a wasteful number, since it uses less digits than its factorization.

222100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111050013.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 222100022 is about 14903.0205663147. The cubic root of 222100022 is about 605.5958176499.

Adding to 222100022 its reverse (220001222), we get a palindrome (442101244).

The spelling of 222100022 in words is "two hundred twenty-two million, one hundred thousand, twenty-two".