20112201221122 has 16 divisors (see below), whose sum is σ = 31944878415000. Its totient is φ = 9463981401088.

The previous prime is 20112201221083. The next prime is 20112201221141. The reversal of 20112201221122 is 22112210221102.

It can be written as a sum of positive squares in 4 ways, for example, as 20112076653201 + 124567921 = 4484649^2 + 11161^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20112201221122.

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, 17686747 + ... + 18789502.

Almost surely, 2^{20112201221122} is an apocalyptic number.

20112201221122 is a deficient number, since it is larger than the sum of its proper divisors (11832677193878).

20112201221122 is a wasteful number, since it uses less digits than its factorization.

20112201221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36492485.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20112201221122 its reverse (22112210221102), we get a palindrome (42224411442224).

The spelling of 20112201221122 in words is "twenty trillion, one hundred twelve billion, two hundred one million, two hundred twenty-one thousand, one hundred twenty-two".