20212102222 has 24 divisors (see below), whose sum is σ = 32840850600. Its totient is φ = 9325499040.

The previous prime is 20212102199. The next prime is 20212102231. The reversal of 20212102222 is 22220121202.

It is a junction number, because it is equal to n+sod(n) for n = 20212102196 and 20212102205.

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 in 11 ways as a sum of consecutive naturals, for example, 1202029 + ... + 1218727.

It is an arithmetic number, because the mean of its divisors is an integer number (1368368775).

Almost surely, 2^20212102222 is an apocalyptic number.

20212102222 is a deficient number, since it is larger than the sum of its proper divisors (12628748378).

20212102222 is a wasteful number, since it uses less digits than its factorization.

20212102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20308 (or 20295 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20212102222 its reverse (22220121202), we get a palindrome (42432223424).

The spelling of 20212102222 in words is "twenty billion, two hundred twelve million, one hundred two thousand, two hundred twenty-two".