101220000002201 has 4 divisors (see below), whose sum is σ = 101220151674804. Its totient is φ = 101219848329600.

The previous prime is 101220000002167. The next prime is 101220000002203. The reversal of 101220000002201 is 102200000022101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89006016490000 + 12213983512201 = 9434300^2 + 3494851^2 .

It is a cyclic number.

It is not a de Polignac number, because 101220000002201 - 2¹⁰ = 101220000001177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101220000002203) 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, 74830820 + ... + 76171461.

It is an arithmetic number, because the mean of its divisors is an integer number (25305037918701).

Almost surely, 2^{101220000002201} is an apocalyptic number.

It is an amenable number.

101220000002201 is a deficient number, since it is larger than the sum of its proper divisors (151672603).

101220000002201 is an equidigital number, since it uses as much as digits as its factorization.

101220000002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151672602.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 101220000002201 its reverse (102200000022101), we get a palindrome (203420000024302).

The spelling of 101220000002201 in words is "one hundred one trillion, two hundred twenty billion, two thousand, two hundred one".