221123020302201 has 4 divisors (see below), whose sum is σ = 294830693736272. Its totient is φ = 147415346868132.

The previous prime is 221123020302113. The next prime is 221123020302209. The reversal of 221123020302201 is 102203020321122.

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 not a de Polignac number, because 221123020302201 - 2¹⁸ = 221123020040057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221123020302209) 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, 36853836717031 + ... + 36853836717036.

It is an arithmetic number, because the mean of its divisors is an integer number (73707673434068).

Almost surely, 2^{221123020302201} is an apocalyptic number.

It is an amenable number.

221123020302201 is a deficient number, since it is larger than the sum of its proper divisors (73707673434071).

221123020302201 is an equidigital number, since it uses as much as digits as its factorization.

221123020302201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73707673434070.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221123020302201 its reverse (102203020321122), we get a palindrome (323326040623323).

The spelling of 221123020302201 in words is "two hundred twenty-one trillion, one hundred twenty-three billion, twenty million, three hundred two thousand, two hundred one".