20100112222 has 16 divisors (see below), whose sum is σ = 31225231440. Its totient is φ = 9692488512.

The previous prime is 20100112213. The next prime is 20100112237. The reversal of 20100112222 is 22221100102.

It is a happy number.

It is a super-2 number, since 2×20100112222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145023 + ... + 247450.

It is an arithmetic number, because the mean of its divisors is an integer number (1951576965).

Almost surely, 2^20100112222 is an apocalyptic number.

20100112222 is a deficient number, since it is larger than the sum of its proper divisors (11125119218).

20100112222 is a wasteful number, since it uses less digits than its factorization.

20100112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393387.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20100112222 its reverse (22221100102), we get a palindrome (42321212324).

The spelling of 20100112222 in words is "twenty billion, one hundred million, one hundred twelve thousand, two hundred twenty-two".