101001121221201 has 16 divisors (see below), whose sum is σ = 137535102052608. Its totient is φ = 65900645193600.

The previous prime is 101001121221199. The next prime is 101001121221229. The reversal of 101001121221201 is 102122121100101.

It is a happy number.

It is not a de Polignac number, because 101001121221201 - 2¹ = 101001121221199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101001121221601) 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, 7511271 + ... + 16075491.

It is an arithmetic number, because the mean of its divisors is an integer number (8595943878288).

Almost surely, 2^{101001121221201} is an apocalyptic number.

It is an amenable number.

101001121221201 is a deficient number, since it is larger than the sum of its proper divisors (36533980831407).

101001121221201 is an equidigital number, since it uses as much as digits as its factorization.

101001121221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8647912.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101001121221201 its reverse (102122121100101), we get a palindrome (203123242321302).

The spelling of 101001121221201 in words is "one hundred one trillion, one billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred one".