101001101212001 has 4 divisors (see below), whose sum is σ = 101001121653012. Its totient is φ = 101001080770992.

The previous prime is 101001101211931. The next prime is 101001101212013. The reversal of 101001101212001 is 100212101100101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48458319362401 + 52542781849600 = 6961201^2 + 7248640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101001101212001 is a prime.

It is a super-2 number, since 2×101001101212001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101001101212301) 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, 2321051 + ... + 14401023.

It is an arithmetic number, because the mean of its divisors is an integer number (25250280413253).

Almost surely, 2^{101001101212001} is an apocalyptic number.

It is an amenable number.

101001101212001 is a deficient number, since it is larger than the sum of its proper divisors (20441011).

101001101212001 is an equidigital number, since it uses as much as digits as its factorization.

101001101212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20441010.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101001101212001 its reverse (100212101100101), we get a palindrome (201213202312102).

The spelling of 101001101212001 in words is "one hundred one trillion, one billion, one hundred one million, two hundred twelve thousand, one".