10201575121 has 4 divisors (see below), whose sum is σ = 10202111332. Its totient is φ = 10201038912.

The previous prime is 10201575113. The next prime is 10201575173. The reversal of 10201575121 is 12157510201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12157510201 = 15139 ⋅803059.

It can be written as a sum of positive squares in 2 ways, for example, as 5392846096 + 4808729025 = 73436^2 + 69345^2 .

It is a cyclic number.

It is not a de Polignac number, because 10201575121 - 2³ = 10201575113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10271575121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238476 + ... + 277981.

It is an arithmetic number, because the mean of its divisors is an integer number (2550527833).

Almost surely, 2^10201575121 is an apocalyptic number.

It is an amenable number.

10201575121 is a deficient number, since it is larger than the sum of its proper divisors (536211).

10201575121 is an equidigital number, since it uses as much as digits as its factorization.

10201575121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536210.

The product of its (nonzero) digits is 700, while the sum is 25.

The spelling of 10201575121 in words is "ten billion, two hundred one million, five hundred seventy-five thousand, one hundred twenty-one".