101000202001021 has 4 divisors (see below), whose sum is σ = 104258273033344. Its totient is φ = 97742130968700.

The previous prime is 101000202001009. The next prime is 101000202001157. The reversal of 101000202001021 is 120100202000101.

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 101000202001021 - 2¹¹ = 101000201998973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101000202000989 and 101000202001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101000202011021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1629035516115 + ... + 1629035516176.

It is an arithmetic number, because the mean of its divisors is an integer number (26064568258336).

Almost surely, 2^{101000202001021} is an apocalyptic number.

It is an amenable number.

101000202001021 is a deficient number, since it is larger than the sum of its proper divisors (3258071032323).

101000202001021 is an equidigital number, since it uses as much as digits as its factorization.

101000202001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258071032322.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101000202001021 its reverse (120100202000101), we get a palindrome (221100404001122).

The spelling of 101000202001021 in words is "one hundred one trillion, two hundred two million, one thousand, twenty-one".