20102220001 has 4 divisors (see below), whose sum is σ = 21160231600. Its totient is φ = 19044208404.

The previous prime is 20102219939. The next prime is 20102220007. The reversal of 20102220001 is 10002220102.

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 20102220001 - 2⁷ = 20102219873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20102220001.

It is not an unprimeable number, because it can be changed into a prime (20102220007) 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, 529005771 + ... + 529005808.

It is an arithmetic number, because the mean of its divisors is an integer number (5290057900).

Almost surely, 2^20102220001 is an apocalyptic number.

It is an amenable number.

20102220001 is a deficient number, since it is larger than the sum of its proper divisors (1058011599).

20102220001 is a wasteful number, since it uses less digits than its factorization.

20102220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058011598.

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

Adding to 20102220001 its reverse (10002220102), we get a palindrome (30104440103).

The spelling of 20102220001 in words is "twenty billion, one hundred two million, two hundred twenty thousand, one".