20102001022001 has 16 divisors (see below), whose sum is σ = 21973302190080. Its totient is φ = 18307360727040.

The previous prime is 20102001021919. The next prime is 20102001022009. The reversal of 20102001022001 is 10022010020102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20102001022001 - 2¹⁰ = 20102001020977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20102001022009) 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 15 ways as a sum of consecutive naturals, for example, 3259760 + ... + 7129518.

It is an arithmetic number, because the mean of its divisors is an integer number (1373331386880).

Almost surely, 2^{20102001022001} is an apocalyptic number.

It is an amenable number.

20102001022001 is a deficient number, since it is larger than the sum of its proper divisors (1871301168079).

20102001022001 is a wasteful number, since it uses less digits than its factorization.

20102001022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879664.

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

Adding to 20102001022001 its reverse (10022010020102), we get a palindrome (30124011042103).

The spelling of 20102001022001 in words is "twenty trillion, one hundred two billion, one million, twenty-two thousand, one".