21203302201001 has 16 divisors (see below), whose sum is σ = 21758517235968. Its totient is φ = 20652437030400.

The previous prime is 21203302200959. The next prime is 21203302201009. The reversal of 21203302201001 is 10010220330212.

It is a cyclic number.

It is not a de Polignac number, because 21203302201001 - 2⁶ = 21203302200937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21203302201009) 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 15 ways as a sum of consecutive naturals, for example, 168456671 + ... + 168582491.

It is an arithmetic number, because the mean of its divisors is an integer number (1359907327248).

Almost surely, 2^{21203302201001} is an apocalyptic number.

It is an amenable number.

21203302201001 is a deficient number, since it is larger than the sum of its proper divisors (555215034967).

21203302201001 is a wasteful number, since it uses less digits than its factorization.

21203302201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143072.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21203302201001 its reverse (10010220330212), we get a palindrome (31213522531213).

The spelling of 21203302201001 in words is "twenty-one trillion, two hundred three billion, three hundred two million, two hundred one thousand, one".