201022102001 has 8 divisors (see below), whose sum is σ = 229743108864. Its totient is φ = 172301986080.

The previous prime is 201022101937. The next prime is 201022102003. The reversal of 201022102001 is 100201220102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201022102001 - 2⁶ = 201022101937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201022102003) 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, 363701 + ... + 730973.

It is an arithmetic number, because the mean of its divisors is an integer number (28717888608).

Almost surely, 2^201022102001 is an apocalyptic number.

It is an amenable number.

201022102001 is a deficient number, since it is larger than the sum of its proper divisors (28721006863).

201022102001 is an equidigital number, since it uses as much as digits as its factorization.

201022102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445471.

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

Adding to 201022102001 its reverse (100201220102), we get a palindrome (301223322103).

The spelling of 201022102001 in words is "two hundred one billion, twenty-two million, one hundred two thousand, one".