22222012112 has 10 divisors (see below), whose sum is σ = 43055148498. Its totient is φ = 11111006048.

The previous prime is 22222012067. The next prime is 22222012157. The reversal of 22222012112 is 21121022222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22222012067) and next prime (22222012157).

It can be written as a sum of positive squares in only one way, i.e., 14198152336 + 8023859776 = 119156^2 + 89576^2 .

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, 694437863 + ... + 694437894.

Almost surely, 2^22222012112 is an apocalyptic number.

It is an amenable number.

22222012112 is a deficient number, since it is larger than the sum of its proper divisors (20833136386).

22222012112 is a wasteful number, since it uses less digits than its factorization.

22222012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388875765 (or 1388875759 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22222012112 its reverse (21121022222), we get a palindrome (43343034334).

The spelling of 22222012112 in words is "twenty-two billion, two hundred twenty-two million, twelve thousand, one hundred twelve".