20112220223122 has 8 divisors (see below), whose sum is σ = 30194495412156. Its totient is φ = 10047388419072.

The previous prime is 20112220223083. The next prime is 20112220223141. The reversal of 20112220223122 is 22132202221102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15443807479321 + 4668412743801 = 3929861^2 + 2160651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20112220223093 and 20112220223102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4360843363 + ... + 4360847974.

Almost surely, 2^{20112220223122} is an apocalyptic number.

20112220223122 is a deficient number, since it is larger than the sum of its proper divisors (10082275189034).

20112220223122 is a wasteful number, since it uses less digits than its factorization.

20112220223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721692492.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20112220223122 its reverse (22132202221102), we get a palindrome (42244422444224).

The spelling of 20112220223122 in words is "twenty trillion, one hundred twelve billion, two hundred twenty million, two hundred twenty-three thousand, one hundred twenty-two".