20221001020001 has 8 divisors (see below), whose sum is σ = 21344226189600. Its totient is φ = 19156737801924.

The previous prime is 20221001019929. The next prime is 20221001020021. The reversal of 20221001020001 is 10002010012202.

It is a happy number.

It is not a de Polignac number, because 20221001020001 - 2⁴² = 15822954508897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221001020021) 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 7 ways as a sum of consecutive naturals, for example, 1474041911 + ... + 1474055628.

It is an arithmetic number, because the mean of its divisors is an integer number (2668028273700).

Almost surely, 2^{20221001020001} is an apocalyptic number.

It is an amenable number.

20221001020001 is a deficient number, since it is larger than the sum of its proper divisors (1123225169599).

20221001020001 is an frugal number, since it uses more digits than its factorization.

20221001020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948097596 (or 2948097558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20221001020001 its reverse (10002010012202), we get a palindrome (30223011032203).

The spelling of 20221001020001 in words is "twenty trillion, two hundred twenty-one billion, one million, twenty thousand, one".