101001121202021 has 4 divisors (see below), whose sum is σ = 101001327864192. Its totient is φ = 101000914539852.

The previous prime is 101001121201993. The next prime is 101001121202029. The reversal of 101001121202021 is 120202121100101.

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 not a de Polignac number, because 101001121202021 - 2³⁴ = 100983941332837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101001121201987 and 101001121202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001121202029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102596255 + ... + 103576028.

It is an arithmetic number, because the mean of its divisors is an integer number (25250331966048).

Almost surely, 2^{101001121202021} is an apocalyptic number.

It is an amenable number.

101001121202021 is a deficient number, since it is larger than the sum of its proper divisors (206662171).

101001121202021 is an equidigital number, since it uses as much as digits as its factorization.

101001121202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206662170.

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

Adding to 101001121202021 its reverse (120202121100101), we get a palindrome (221203242302122).

The spelling of 101001121202021 in words is "one hundred one trillion, one billion, one hundred twenty-one million, two hundred two thousand, twenty-one".