20022212222112 has 48 divisors (see below), whose sum is σ = 55649972210112. Its totient is φ = 6281478343680.

The previous prime is 20022212222099. The next prime is 20022212222113. The reversal of 20022212222112 is 21122221222002.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (20022212222113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6134254564 + ... + 6134257827.

It is an arithmetic number, because the mean of its divisors is an integer number (1159374421044).

Almost surely, 2^{20022212222112} is an apocalyptic number.

It is an amenable number.

20022212222112 is an abundant number, since it is smaller than the sum of its proper divisors (35627759988000).

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

20022212222112 is a wasteful number, since it uses less digits than its factorization.

20022212222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12268512421 (or 12268512413 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20022212222112 its reverse (21122221222002), we get a palindrome (41144433444114).

The spelling of 20022212222112 in words is "twenty trillion, twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twelve".