2221573586401 has 4 divisors (see below), whose sum is σ = 2392463862292. Its totient is φ = 2050683310512.

The previous prime is 2221573586371. The next prime is 2221573586411. The reversal of 2221573586401 is 1046853751222.

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 1426230674001 + 795342912400 = 1194249^2 + 891820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221573586401 - 2¹¹ = 2221573584353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221573586411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85445137926 + ... + 85445137951.

It is an arithmetic number, because the mean of its divisors is an integer number (598115965573).

Almost surely, 2^{2221573586401} is an apocalyptic number.

It is an amenable number.

2221573586401 is a deficient number, since it is larger than the sum of its proper divisors (170890275891).

2221573586401 is a wasteful number, since it uses less digits than its factorization.

2221573586401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170890275890.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 2221573586401 in words is "two trillion, two hundred twenty-one billion, five hundred seventy-three million, five hundred eighty-six thousand, four hundred one".