101221120202201 has 4 divisors (see below), whose sum is σ = 101289931298304. Its totient is φ = 101152309106100.

The previous prime is 101221120202171. The next prime is 101221120202227. The reversal of 101221120202201 is 102202021122101.

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 a de Polignac number, because none of the positive numbers 2^k-101221120202201 is a prime.

It is a super-2 number, since 2×101221120202201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101221120202201.

It is not an unprimeable number, because it can be changed into a prime (101221120202101) 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, 34405545845 + ... + 34405548786.

It is an arithmetic number, because the mean of its divisors is an integer number (25322482824576).

Almost surely, 2^{101221120202201} is an apocalyptic number.

It is an amenable number.

101221120202201 is a deficient number, since it is larger than the sum of its proper divisors (68811096103).

101221120202201 is an equidigital number, since it uses as much as digits as its factorization.

101221120202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68811096102.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101221120202201 its reverse (102202021122101), we get a palindrome (203423141324302).

The spelling of 101221120202201 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred twenty million, two hundred two thousand, two hundred one".