21202010201201 has 12 divisors (see below), whose sum is σ = 22165616193588. Its totient is φ = 20278628112864.

The previous prime is 21202010201143. The next prime is 21202010201227. The reversal of 21202010201201 is 10210201020212.

It can be written as a sum of positive squares in 2 ways, for example, as 19891385920576 + 1310624280625 = 4459976^2 + 1144825^2 .

It is not a de Polignac number, because 21202010201201 - 2⁶ = 21202010201137 is a prime.

It is a super-3 number, since 3×21202010201201³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21202010201291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5395631 + ... + 8456763.

It is an arithmetic number, because the mean of its divisors is an integer number (1847134682799).

Almost surely, 2^{21202010201201} is an apocalyptic number.

It is an amenable number.

21202010201201 is a deficient number, since it is larger than the sum of its proper divisors (963605992387).

21202010201201 is a wasteful number, since it uses less digits than its factorization.

21202010201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074272 (or 3074249 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21202010201201 its reverse (10210201020212), we get a palindrome (31412211221413).

The spelling of 21202010201201 in words is "twenty-one trillion, two hundred two billion, ten million, two hundred one thousand, two hundred one".