20122210012222 has 4 divisors (see below), whose sum is σ = 30183315018336. Its totient is φ = 10061105006110.

The previous prime is 20122210012159. The next prime is 20122210012231. The reversal of 20122210012222 is 22221001222102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20122210012222.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5030552503054 + ... + 5030552503057.

It is an arithmetic number, because the mean of its divisors is an integer number (7545828754584).

Almost surely, 2^{20122210012222} is an apocalyptic number.

20122210012222 is a deficient number, since it is larger than the sum of its proper divisors (10061105006114).

20122210012222 is a wasteful number, since it uses less digits than its factorization.

20122210012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061105006113.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20122210012222 its reverse (22221001222102), we get a palindrome (42343211234324).

The spelling of 20122210012222 in words is "twenty trillion, one hundred twenty-two billion, two hundred ten million, twelve thousand, two hundred twenty-two".