20111102202122 has 16 divisors (see below), whose sum is σ = 30714608374272. Its totient is φ = 9874113043680.

The previous prime is 20111102202067. The next prime is 20111102202131. The reversal of 20111102202122 is 22120220111102.

It is a self number, because there is not a number n which added to its sum of digits gives 20111102202122.

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 in 7 ways as a sum of consecutive naturals, for example, 303374954 + ... + 303441237.

It is an arithmetic number, because the mean of its divisors is an integer number (1919663023392).

Almost surely, 2^{20111102202122} is an apocalyptic number.

20111102202122 is a deficient number, since it is larger than the sum of its proper divisors (10603506172150).

20111102202122 is a wasteful number, since it uses less digits than its factorization.

20111102202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606816493.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20111102202122 its reverse (22120220111102), we get a palindrome (42231322313224).

The spelling of 20111102202122 in words is "twenty trillion, one hundred eleven billion, one hundred two million, two hundred two thousand, one hundred twenty-two".