20212110001 has 4 divisors (see below), whose sum is σ = 20412230004. Its totient is φ = 20011990000.

The previous prime is 20212109969. The next prime is 20212110041. The reversal of 20212110001 is 10001121202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9447840000 + 10764270001 = 97200^2 + 103751^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212110001 - 2⁵ = 20212109969 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 20212110001.

It is not an unprimeable number, because it can be changed into a prime (20212110041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100059850 + ... + 100060051.

It is an arithmetic number, because the mean of its divisors is an integer number (5103057501).

Almost surely, 2^20212110001 is an apocalyptic number.

It is an amenable number.

20212110001 is a deficient number, since it is larger than the sum of its proper divisors (200120003).

20212110001 is a wasteful number, since it uses less digits than its factorization.

20212110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200120002.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20212110001 its reverse (10001121202), we get a palindrome (30213231203).

The spelling of 20212110001 in words is "twenty billion, two hundred twelve million, one hundred ten thousand, one".