20210111120201 has 16 divisors (see below), whose sum is σ = 21517174965888. Its totient is φ = 18942690624000.

The previous prime is 20210111120189. The next prime is 20210111120323. The reversal of 20210111120201 is 10202111101202.

It is a cyclic number.

It is not a de Polignac number, because 20210111120201 - 2¹⁸ = 20210110858057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210111020201) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44620055 + ... + 45070716.

It is an arithmetic number, because the mean of its divisors is an integer number (1344823435368).

Almost surely, 2^{20210111120201} is an apocalyptic number.

It is an amenable number.

20210111120201 is a deficient number, since it is larger than the sum of its proper divisors (1307063845687).

20210111120201 is a wasteful number, since it uses less digits than its factorization.

20210111120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89690992.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20210111120201 its reverse (10202111101202), we get a palindrome (30412222221403).

The spelling of 20210111120201 in words is "twenty trillion, two hundred ten billion, one hundred eleven million, one hundred twenty thousand, two hundred one".