101201121001 has 4 divisors (see below), whose sum is σ = 101247061072. Its totient is φ = 101155180932.

The previous prime is 101201120941. The next prime is 101201121013. The reversal of 101201121001 is 100121102101.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101201121001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101201181001) 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, 22966731 + ... + 22971136.

It is an arithmetic number, because the mean of its divisors is an integer number (25311765268).

Almost surely, 2^101201121001 is an apocalyptic number.

It is an amenable number.

101201121001 is a deficient number, since it is larger than the sum of its proper divisors (45940071).

101201121001 is an equidigital number, since it uses as much as digits as its factorization.

101201121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45940070.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101201121001 its reverse (100121102101), we get a palindrome (201322223102).

It can be divided in two parts, 101 and 201121001, that added together give a palindrome (201121102).

The spelling of 101201121001 in words is "one hundred one billion, two hundred one million, one hundred twenty-one thousand, one".