201012112001 has 4 divisors (see below), whose sum is σ = 201013039104. Its totient is φ = 201011184900.

The previous prime is 201012111931. The next prime is 201012112003. The reversal of 201012112001 is 100211210102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 201012112001 - 2²⁶ = 200945003137 is a prime.

It is a super-2 number, since 2×201012112001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201012112003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55136 + ... + 636446.

It is an arithmetic number, because the mean of its divisors is an integer number (50253259776).

Almost surely, 2^201012112001 is an apocalyptic number.

It is an amenable number.

201012112001 is a deficient number, since it is larger than the sum of its proper divisors (927103).

201012112001 is an equidigital number, since it uses as much as digits as its factorization.

201012112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927102.

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

Adding to 201012112001 its reverse (100211210102), we get a palindrome (301223322103).

The spelling of 201012112001 in words is "two hundred one billion, twelve million, one hundred twelve thousand, one".