20002101022001 has 8 divisors (see below), whose sum is σ = 22859576376960. Its totient is φ = 17144633755008.

The previous prime is 20002101021997. The next prime is 20002101022009. The reversal of 20002101022001 is 10022010120002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20002101022001 - 2² = 20002101021997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002101022009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4821665 + ... + 7953153.

It is an arithmetic number, because the mean of its divisors is an integer number (2857447047120).

Almost surely, 2^{20002101022001} is an apocalyptic number.

It is an amenable number.

20002101022001 is a deficient number, since it is larger than the sum of its proper divisors (2857475354959).

20002101022001 is an equidigital number, since it uses as much as digits as its factorization.

20002101022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043983.

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

Adding to 20002101022001 its reverse (10022010120002), we get a palindrome (30024111142003).

The spelling of 20002101022001 in words is "twenty trillion, two billion, one hundred one million, twenty-two thousand, one".