101201202021 has 4 divisors (see below), whose sum is σ = 134934936032. Its totient is φ = 67467468012.

The previous prime is 101201202001. The next prime is 101201202023. The reversal of 101201202021 is 120202102101.

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 not a de Polignac number, because 101201202021 - 2¹¹ = 101201199973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101201201988 and 101201202006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201202023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16866867001 + ... + 16866867006.

It is an arithmetic number, because the mean of its divisors is an integer number (33733734008).

Almost surely, 2^101201202021 is an apocalyptic number.

It is an amenable number.

101201202021 is a deficient number, since it is larger than the sum of its proper divisors (33733734011).

101201202021 is an equidigital number, since it uses as much as digits as its factorization.

101201202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33733734010.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101201202021 its reverse (120202102101), we get a palindrome (221403304122).

The spelling of 101201202021 in words is "one hundred one billion, two hundred one million, two hundred two thousand, twenty-one".