101100012202121 has 4 divisors (see below), whose sum is σ = 101215291578372. Its totient is φ = 100984732825872.

The previous prime is 101100012202093. The next prime is 101100012202139. The reversal of 101100012202121 is 121202210001101.

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 71486433151225 + 29613579050896 = 8454965^2 + 5441836^2 .

It is a cyclic number.

It is not a de Polignac number, because 101100012202121 - 2³⁸ = 100825134295177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101100012202096 and 101100012202105.

It is not an unprimeable number, because it can be changed into a prime (101100012202171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57639686810 + ... + 57639688563.

It is an arithmetic number, because the mean of its divisors is an integer number (25303822894593).

Almost surely, 2^{101100012202121} is an apocalyptic number.

It is an amenable number.

101100012202121 is a deficient number, since it is larger than the sum of its proper divisors (115279376251).

101100012202121 is an equidigital number, since it uses as much as digits as its factorization.

101100012202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115279376250.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101100012202121 its reverse (121202210001101), we get a palindrome (222302222203222).

The spelling of 101100012202121 in words is "one hundred one trillion, one hundred billion, twelve million, two hundred two thousand, one hundred twenty-one".