10201202101221 has 4 divisors (see below), whose sum is σ = 13601602801632. Its totient is φ = 6800801400812.

The previous prime is 10201202101163. The next prime is 10201202101241. The reversal of 10201202101221 is 12210120210201.

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 10201202101221 - 2⁹ = 10201202100709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10201202101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201202101241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700200350201 + ... + 1700200350206.

It is an arithmetic number, because the mean of its divisors is an integer number (3400400700408).

Almost surely, 2^{10201202101221} is an apocalyptic number.

It is an amenable number.

10201202101221 is a deficient number, since it is larger than the sum of its proper divisors (3400400700411).

10201202101221 is an equidigital number, since it uses as much as digits as its factorization.

10201202101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400400700410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10201202101221 its reverse (12210120210201), we get a palindrome (22411322311422).

The spelling of 10201202101221 in words is "ten trillion, two hundred one billion, two hundred two million, one hundred one thousand, two hundred twenty-one".