20012220202222 has 4 divisors (see below), whose sum is σ = 30018330303336. Its totient is φ = 10006110101110.

The previous prime is 20012220202189. The next prime is 20012220202229. The reversal of 20012220202222 is 22220202221002.

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 20012220202222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012220202229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5003055050554 + ... + 5003055050557.

It is an arithmetic number, because the mean of its divisors is an integer number (7504582575834).

Almost surely, 2^{20012220202222} is an apocalyptic number.

20012220202222 is a deficient number, since it is larger than the sum of its proper divisors (10006110101114).

20012220202222 is a wasteful number, since it uses less digits than its factorization.

20012220202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10006110101113.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20012220202222 its reverse (22220202221002), we get a palindrome (42232422423224).

The spelling of 20012220202222 in words is "twenty trillion, twelve billion, two hundred twenty million, two hundred two thousand, two hundred twenty-two".