20021202100001 has 8 divisors (see below), whose sum is σ = 20061815532000. Its totient is φ = 19980590632128.

The previous prime is 20021202099989. The next prime is 20021202100033. The reversal of 20021202100001 is 10000120212002.

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 a de Polignac number, because none of the positive numbers 2^k-20021202100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021202100301) 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, 20856350 + ... + 21795176.

It is an arithmetic number, because the mean of its divisors is an integer number (2507726941500).

Almost surely, 2^{20021202100001} is an apocalyptic number.

It is an amenable number.

20021202100001 is a deficient number, since it is larger than the sum of its proper divisors (40613431999).

20021202100001 is an equidigital number, since it uses as much as digits as its factorization.

20021202100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982063.

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

Adding to 20021202100001 its reverse (10000120212002), we get a palindrome (30021322312003).

The spelling of 20021202100001 in words is "twenty trillion, twenty-one billion, two hundred two million, one hundred thousand, one".