20210220000001 has 4 divisors (see below), whose sum is σ = 20281634205232. Its totient is φ = 20138805794772.

The previous prime is 20210219999971. The next prime is 20210220000007. The reversal of 20210220000001 is 10000002201202.

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 20210220000001 - 2⁵ = 20210219999969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210220000007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35707102191 + ... + 35707102756.

It is an arithmetic number, because the mean of its divisors is an integer number (5070408551308).

Almost surely, 2^{20210220000001} is an apocalyptic number.

It is an amenable number.

20210220000001 is a deficient number, since it is larger than the sum of its proper divisors (71414205231).

20210220000001 is an equidigital number, since it uses as much as digits as its factorization.

20210220000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71414205230.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20210220000001 its reverse (10000002201202), we get a palindrome (30210222201203).

The spelling of 20210220000001 in words is "twenty trillion, two hundred ten billion, two hundred twenty million, one", and thus it is an aban number.