101001100121 has 4 divisors (see below), whose sum is σ = 101003232000. Its totient is φ = 100998968244.

The previous prime is 101001100103. The next prime is 101001100129. The reversal of 101001100121 is 121001100101.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 121001100101 = 7 ⋅17285871443.

It is a cyclic number.

It is not a de Polignac number, because 101001100121 - 2³⁴ = 83821230937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101001100099 and 101001100108.

It is not an unprimeable number, because it can be changed into a prime (101001100129) 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, 993221 + ... + 1090178.

It is an arithmetic number, because the mean of its divisors is an integer number (25250808000).

Almost surely, 2^101001100121 is an apocalyptic number.

It is an amenable number.

101001100121 is a deficient number, since it is larger than the sum of its proper divisors (2131879).

101001100121 is an equidigital number, since it uses as much as digits as its factorization.

101001100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131878.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 101001100121 its reverse (121001100101), we get a palindrome (222002200222).

The spelling of 101001100121 in words is "one hundred one billion, one million, one hundred thousand, one hundred twenty-one".