220002110661 has 8 divisors (see below), whose sum is σ = 293347792864. Its totient is φ = 146662251120.

The previous prime is 220002110641. The next prime is 220002110663. The reversal of 220002110661 is 166011200022.

220002110661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 220002110661 - 2²¹ = 220000013509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220002110663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366726 + ... + 1519191.

It is an arithmetic number, because the mean of its divisors is an integer number (36668474108).

Almost surely, 2^220002110661 is an apocalyptic number.

It is an amenable number.

220002110661 is a deficient number, since it is larger than the sum of its proper divisors (73345682203).

220002110661 is a wasteful number, since it uses less digits than its factorization.

220002110661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911331.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 220002110661 its reverse (166011200022), we get a palindrome (386013310683).

The spelling of 220002110661 in words is "two hundred twenty billion, two million, one hundred ten thousand, six hundred sixty-one".