20211020112201 has 16 divisors (see below), whose sum is σ = 27467840409984. Its totient is φ = 13214316986624.

The previous prime is 20211020112161. The next prime is 20211020112233. The reversal of 20211020112201 is 10221102011202.

It is a cyclic number.

It is not a de Polignac number, because 20211020112201 - 2¹⁷ = 20211019981129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211020112601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25911381 + ... + 26679986.

It is an arithmetic number, because the mean of its divisors is an integer number (1716740025624).

Almost surely, 2^{20211020112201} is an apocalyptic number.

It is an amenable number.

20211020112201 is a deficient number, since it is larger than the sum of its proper divisors (7256820297783).

20211020112201 is a wasteful number, since it uses less digits than its factorization.

20211020112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52593840.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20211020112201 its reverse (10221102011202), we get a palindrome (30432122123403).

The spelling of 20211020112201 in words is "twenty trillion, two hundred eleven billion, twenty million, one hundred twelve thousand, two hundred one".