221002202005 has 8 divisors (see below), whose sum is σ = 285602845752. Its totient is φ = 163201626048.

The previous prime is 221002201991. The next prime is 221002202009. The reversal of 221002202005 is 500202200122.

It can be written as a sum of positive squares in 4 ways, for example, as 39333598929 + 181668603076 = 198327^2 + 426226^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221002202005 - 2⁹ = 221002201493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221002202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002202009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700016874 + ... + 1700017003.

It is an arithmetic number, because the mean of its divisors is an integer number (35700355719).

Almost surely, 2^221002202005 is an apocalyptic number.

It is an amenable number.

221002202005 is a deficient number, since it is larger than the sum of its proper divisors (64600643747).

221002202005 is a wasteful number, since it uses less digits than its factorization.

221002202005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400033895.

The product of its (nonzero) digits is 160, while the sum is 16.

Adding to 221002202005 its reverse (500202200122), we get a palindrome (721204402127).

The spelling of 221002202005 in words is "two hundred twenty-one billion, two million, two hundred two thousand, five".