20100012222 has 16 divisors (see below), whose sum is σ = 40598045712. Its totient is φ = 6633667200.

The previous prime is 20100012211. The next prime is 20100012227. The reversal of 20100012222 is 22221000102.

It is a junction number, because it is equal to n+sod(n) for n = 20100012198 and 20100012207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100012227) by changing a digit.

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, 16583563 + ... + 16584774.

It is an arithmetic number, because the mean of its divisors is an integer number (2537377857).

Almost surely, 2^20100012222 is an apocalyptic number.

20100012222 is an abundant number, since it is smaller than the sum of its proper divisors (20498033490).

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

20100012222 is a wasteful number, since it uses less digits than its factorization.

20100012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33168443.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20100012222 its reverse (22221000102), we get a palindrome (42321012324).

The spelling of 20100012222 in words is "twenty billion, one hundred million, twelve thousand, two hundred twenty-two".