221311040200001 has 4 divisors (see below), whose sum is σ = 234329336682372. Its totient is φ = 208292743717632.

The previous prime is 221311040199941. The next prime is 221311040200043. The reversal of 221311040200001 is 100002040113122.

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 183348498309376 + 37962541890625 = 13540624^2 + 6161375^2 .

It is a cyclic number.

It is not a de Polignac number, because 221311040200001 - 2³⁴ = 221293860330817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 13018296482353 = 221311040200001 / (2 + 2 + 1 + 3 + 1 + 1 + 0 + 4 + 0 + 2 + 0 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221311040800001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6509148241160 + ... + 6509148241193.

It is an arithmetic number, because the mean of its divisors is an integer number (58582334170593).

Almost surely, 2^{221311040200001} is an apocalyptic number.

It is an amenable number.

221311040200001 is a deficient number, since it is larger than the sum of its proper divisors (13018296482371).

221311040200001 is a wasteful number, since it uses less digits than its factorization.

221311040200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13018296482370.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 221311040200001 its reverse (100002040113122), we get a palindrome (321313080313123).

The spelling of 221311040200001 in words is "two hundred twenty-one trillion, three hundred eleven billion, forty million, two hundred thousand, one".