220203009989 has 16 divisors (see below), whose sum is σ = 228144470400. Its totient is φ = 212285097024.

The previous prime is 220203009959. The next prime is 220203009991. The reversal of 220203009989 is 989900302022.

It is a cyclic number.

It is not a de Polignac number, because 220203009989 - 2¹⁶ = 220202944453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220203009959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106428647 + ... + 106430715.

It is an arithmetic number, because the mean of its divisors is an integer number (14259029400).

Almost surely, 2^220203009989 is an apocalyptic number.

220203009989 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

220203009989 is a deficient number, since it is larger than the sum of its proper divisors (7941460411).

220203009989 is a wasteful number, since it uses less digits than its factorization.

220203009989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 220203009989 in words is "two hundred twenty billion, two hundred three million, nine thousand, nine hundred eighty-nine".