20102221001222 has 16 divisors (see below), whose sum is σ = 30255874924752. Its totient is φ = 10016959333920.

The previous prime is 20102221001183. The next prime is 20102221001237. The reversal of 20102221001222 is 22210012220102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20102221001222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6150929 + ... + 8833932.

It is an arithmetic number, because the mean of its divisors is an integer number (1890992182797).

Almost surely, 2^{20102221001222} is an apocalyptic number.

20102221001222 is a deficient number, since it is larger than the sum of its proper divisors (10153653923530).

20102221001222 is a wasteful number, since it uses less digits than its factorization.

20102221001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14987143.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20102221001222 its reverse (22210012220102), we get a palindrome (42312233221324).

The spelling of 20102221001222 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, one thousand, two hundred twenty-two".