20202001101001 has 4 divisors (see below), whose sum is σ = 20853678555904. Its totient is φ = 19550323646100.

The previous prime is 20202001100993. The next prime is 20202001101049. The reversal of 20202001101001 is 10010110020202.

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 20202001101001 - 2³ = 20202001100993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202001101091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325838727405 + ... + 325838727466.

It is an arithmetic number, because the mean of its divisors is an integer number (5213419638976).

Almost surely, 2^{20202001101001} is an apocalyptic number.

It is an amenable number.

20202001101001 is a deficient number, since it is larger than the sum of its proper divisors (651677454903).

20202001101001 is an equidigital number, since it uses as much as digits as its factorization.

20202001101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651677454902.

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

Adding to 20202001101001 its reverse (10010110020202), we get a palindrome (30212111121203).

The spelling of 20202001101001 in words is "twenty trillion, two hundred two billion, one million, one hundred one thousand, one".