101201020121 has 8 divisors (see below), whose sum is σ = 104707441800. Its totient is φ = 97695713920.

The previous prime is 101201020061. The next prime is 101201020133. The reversal of 101201020121 is 121020102101.

It can be written as a sum of positive squares in 4 ways, for example, as 17706028096 + 83494992025 = 133064^2 + 288955^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 101201020121 - 2¹⁴ = 101201003737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101201020181) 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, 92150 + ... + 459231.

It is an arithmetic number, because the mean of its divisors is an integer number (13088430225).

Almost surely, 2^101201020121 is an apocalyptic number.

It is an amenable number.

101201020121 is a deficient number, since it is larger than the sum of its proper divisors (3506421679).

101201020121 is an equidigital number, since it uses as much as digits as its factorization.

101201020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557739.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101201020121 its reverse (121020102101), we get a palindrome (222221122222).

The spelling of 101201020121 in words is "one hundred one billion, two hundred one million, twenty thousand, one hundred twenty-one".