22022212112 has 10 divisors (see below), whose sum is σ = 42668035998. Its totient is φ = 11011106048.

The previous prime is 22022212103. The next prime is 22022212117. The reversal of 22022212112 is 21121222022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21522063616 + 500148496 = 146704^2 + 22364^2 .

It is not an unprimeable number, because it can be changed into a prime (22022212117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688194113 + ... + 688194144.

Almost surely, 2^22022212112 is an apocalyptic number.

It is an amenable number.

22022212112 is a deficient number, since it is larger than the sum of its proper divisors (20645823886).

22022212112 is a wasteful number, since it uses less digits than its factorization.

22022212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376388265 (or 1376388259 counting only the distinct ones).

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

Adding to 22022212112 its reverse (21121222022), we get a palindrome (43143434134).

The spelling of 22022212112 in words is "twenty-two billion, twenty-two million, two hundred twelve thousand, one hundred twelve".