22221212100112 has 40 divisors (see below), whose sum is σ = 47056684465152. Its totient is φ = 10119717081600.

The previous prime is 22221212100077. The next prime is 22221212100137. The reversal of 22221212100112 is 21100121212222.

It is a self number, because there is not a number n which added to its sum of digits gives 22221212100112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317663064 + ... + 1317679927.

Almost surely, 2^{22221212100112} is an apocalyptic number.

It is an amenable number.

22221212100112 is an abundant number, since it is smaller than the sum of its proper divisors (24835472365040).

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

22221212100112 is a wasteful number, since it uses less digits than its factorization.

22221212100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635343047 (or 2635343041 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22221212100112 its reverse (21100121212222), we get a palindrome (43321333312334).

The spelling of 22221212100112 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, one hundred thousand, one hundred twelve".