20010112222 has 4 divisors (see below), whose sum is σ = 30015168336. Its totient is φ = 10005056110.

The previous prime is 20010112193. The next prime is 20010112229. The reversal of 20010112222 is 22221101002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20010112222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010112229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002528054 + ... + 5002528057.

It is an arithmetic number, because the mean of its divisors is an integer number (7503792084).

Almost surely, 2^20010112222 is an apocalyptic number.

20010112222 is a deficient number, since it is larger than the sum of its proper divisors (10005056114).

20010112222 is a wasteful number, since it uses less digits than its factorization.

20010112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005056113.

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

Adding to 20010112222 its reverse (22221101002), we get a palindrome (42231213224).

The spelling of 20010112222 in words is "twenty billion, ten million, one hundred twelve thousand, two hundred twenty-two".