201000101222001 has 16 divisors (see below), whose sum is σ = 273189086890560. Its totient is φ = 131426101209600.

The previous prime is 201000101221919. The next prime is 201000101222029. The reversal of 201000101222001 is 100222101000102.

It is not a de Polignac number, because 201000101222001 - 2²¹ = 201000099124849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201000101220001) 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, 2563672200 + ... + 2563750601.

It is an arithmetic number, because the mean of its divisors is an integer number (17074317930660).

Almost surely, 2^{201000101222001} is an apocalyptic number.

It is an amenable number.

201000101222001 is a deficient number, since it is larger than the sum of its proper divisors (72188985668559).

201000101222001 is a wasteful number, since it uses less digits than its factorization.

201000101222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127423056.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201000101222001 its reverse (100222101000102), we get a palindrome (301222202222103).

It can be divided in two parts, 201000101 and 222001, that added together give a palindrome (201222102).

The spelling of 201000101222001 in words is "two hundred one trillion, one hundred one million, two hundred twenty-two thousand, one".