20202020222111 has 32 divisors (see below), whose sum is σ = 25709374107648. Its totient is φ = 15442316305920.

The previous prime is 20202020222071. The next prime is 20202020222113. The reversal of 20202020222111 is 11122202020202.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20202020222111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20202020222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202020222113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4365341 + ... + 7711046.

It is an arithmetic number, because the mean of its divisors is an integer number (803417940864).

Almost surely, 2^{20202020222111} is an apocalyptic number.

20202020222111 is a deficient number, since it is larger than the sum of its proper divisors (5507353885537).

20202020222111 is a wasteful number, since it uses less digits than its factorization.

20202020222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12077031.

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

Adding to 20202020222111 its reverse (11122202020202), we get a palindrome (31324222242313).

The spelling of 20202020222111 in words is "twenty trillion, two hundred two billion, twenty million, two hundred twenty-two thousand, one hundred eleven".