20110021002001 has 32 divisors (see below), whose sum is σ = 24039169597440. Its totient is φ = 16458970784256.

The previous prime is 20110021001963. The next prime is 20110021002091. The reversal of 20110021002001 is 10020012001102.

It is not a de Polignac number, because 20110021002001 - 2⁹ = 20110021001489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110021002091) 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 31 ways as a sum of consecutive naturals, for example, 6823395 + ... + 9315511.

It is an arithmetic number, because the mean of its divisors is an integer number (751224049920).

Almost surely, 2^{20110021002001} is an apocalyptic number.

It is an amenable number.

20110021002001 is a deficient number, since it is larger than the sum of its proper divisors (3929148595439).

20110021002001 is a wasteful number, since it uses less digits than its factorization.

20110021002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492593.

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

Adding to 20110021002001 its reverse (10020012001102), we get a palindrome (30130033003103).

The spelling of 20110021002001 in words is "twenty trillion, one hundred ten billion, twenty-one million, two thousand, one".