20022202212 has 12 divisors (see below), whose sum is σ = 46718471856. Its totient is φ = 6674067400.

The previous prime is 20022202201. The next prime is 20022202267. The reversal of 20022202212 is 21220222002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20022202191 and 20022202200.

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 in 3 ways as a sum of consecutive naturals, for example, 834258414 + ... + 834258437.

It is an arithmetic number, because the mean of its divisors is an integer number (3893205988).

Almost surely, 2^20022202212 is an apocalyptic number.

It is an amenable number.

20022202212 is an abundant number, since it is smaller than the sum of its proper divisors (26696269644).

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

20022202212 is a wasteful number, since it uses less digits than its factorization.

20022202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668516858 (or 1668516856 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20022202212 its reverse (21220222002), we get a palindrome (41242424214).

The spelling of 20022202212 in words is "twenty billion, twenty-two million, two hundred two thousand, two hundred twelve".