20112210012222 has 24 divisors (see below), whose sum is σ = 43576837265520. Its totient is φ = 6704011198080.

The previous prime is 20112210012217. The next prime is 20112210012241. The reversal of 20112210012222 is 22221001221102.

It is a happy number.

It is a super-2 number, since 2×20112210012222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20112210012195 and 20112210012204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2766322 + ... + 6919317.

It is an arithmetic number, because the mean of its divisors is an integer number (1815701552730).

Almost surely, 2^{20112210012222} is an apocalyptic number.

20112210012222 is an abundant number, since it is smaller than the sum of its proper divisors (23464627253298).

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

20112210012222 is a wasteful number, since it uses less digits than its factorization.

20112210012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9801008 (or 9801005 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20112210012222 its reverse (22221001221102), we get a palindrome (42333211233324).

The spelling of 20112210012222 in words is "twenty trillion, one hundred twelve billion, two hundred ten million, twelve thousand, two hundred twenty-two".