20210001121201 has 4 divisors (see below), whose sum is σ = 20286845232192. Its totient is φ = 20133157010212.

The previous prime is 20210001121153. The next prime is 20210001121213. The reversal of 20210001121201 is 10212110001202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20210001121201 - 2⁷ = 20210001121073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210001128201) 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 3 ways as a sum of consecutive naturals, for example, 38422055101 + ... + 38422055626.

It is an arithmetic number, because the mean of its divisors is an integer number (5071711308048).

Almost surely, 2^{20210001121201} is an apocalyptic number.

It is an amenable number.

20210001121201 is a deficient number, since it is larger than the sum of its proper divisors (76844110991).

20210001121201 is an equidigital number, since it uses as much as digits as its factorization.

20210001121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76844110990.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20210001121201 its reverse (10212110001202), we get a palindrome (30422111122403).

The spelling of 20210001121201 in words is "twenty trillion, two hundred ten billion, one million, one hundred twenty-one thousand, two hundred one".