20202111122201 has 32 divisors (see below), whose sum is σ = 21552491923200. Its totient is φ = 18896453452800.

The previous prime is 20202111122197. The next prime is 20202111122273. The reversal of 20202111122201 is 10222111120202.

It is a cyclic number.

It is not a de Polignac number, because 20202111122201 - 2² = 20202111122197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20202111122201.

It is not an unprimeable number, because it can be changed into a prime (20202113122201) 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, 131559695 + ... + 131713163.

It is an arithmetic number, because the mean of its divisors is an integer number (673515372600).

Almost surely, 2^{20202111122201} is an apocalyptic number.

It is an amenable number.

20202111122201 is a deficient number, since it is larger than the sum of its proper divisors (1350380800999).

20202111122201 is a wasteful number, since it uses less digits than its factorization.

20202111122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154289.

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

Adding to 20202111122201 its reverse (10222111120202), we get a palindrome (30424222242403).

The spelling of 20202111122201 in words is "twenty trillion, two hundred two billion, one hundred eleven million, one hundred twenty-two thousand, two hundred one".