20212100222 has 16 divisors (see below), whose sum is σ = 30497157600. Its totient is φ = 10046423520.

The previous prime is 20212100213. The next prime is 20212100273. The reversal of 20212100222 is 22200121202.

It is a junction number, because it is equal to n+sod(n) for n = 20212100197 and 20212100206.

It is a congruent number.

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, 1116479 + ... + 1134437.

It is an arithmetic number, because the mean of its divisors is an integer number (1906072350).

Almost surely, 2^20212100222 is an apocalyptic number.

20212100222 is a deficient number, since it is larger than the sum of its proper divisors (10285057378).

20212100222 is a wasteful number, since it uses less digits than its factorization.

20212100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21251.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20212100222 its reverse (22200121202), we get a palindrome (42412221424).

The spelling of 20212100222 in words is "twenty billion, two hundred twelve million, one hundred thousand, two hundred twenty-two".