201021122102001 has 16 divisors (see below), whose sum is σ = 292949187429888. Its totient is φ = 122062161427200.

The previous prime is 201021122101999. The next prime is 201021122102089. The reversal of 201021122102001 is 100201221120102.

201021122102001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201021122102001 - 2¹ = 201021122101999 is a prime.

It is a super-2 number, since 2×201021122102001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201021122102401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63574040830 + ... + 63574043991.

It is an arithmetic number, because the mean of its divisors is an integer number (18309324214368).

Almost surely, 2^{201021122102001} is an apocalyptic number.

It is an amenable number.

201021122102001 is a deficient number, since it is larger than the sum of its proper divisors (91928065327887).

201021122102001 is a wasteful number, since it uses less digits than its factorization.

201021122102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127148084872.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201021122102001 its reverse (100201221120102), we get a palindrome (301222343222103).

The spelling of 201021122102001 in words is "two hundred one trillion, twenty-one billion, one hundred twenty-two million, one hundred two thousand, one".