220002111 has 72 divisors (see below), whose sum is σ = 386327760. Its totient is φ = 120185856.

The previous prime is 220002109. The next prime is 220002119. The reversal of 220002111 is 111200022.

It is not a de Polignac number, because 220002111 - 2¹ = 220002109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 220002093 and 220002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220002119) 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 71 ways as a sum of consecutive naturals, for example, 1582680 + ... + 1582818.

Almost surely, 2^220002111 is an apocalyptic number.

220002111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220002111 is a deficient number, since it is larger than the sum of its proper divisors (166325649).

220002111 is a wasteful number, since it uses less digits than its factorization.

220002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 220002111 is about 14832.4681358161. The cubic root of 220002111 is about 603.6830045384.

Adding to 220002111 its reverse (111200022), we get a palindrome (331202133).

The spelling of 220002111 in words is "two hundred twenty million, two thousand, one hundred eleven".