219228207 has 16 divisors (see below), whose sum is σ = 319265280. Its totient is φ = 132704000.

The previous prime is 219228199. The next prime is 219228223. The reversal of 219228207 is 702822912.

It is not a de Polignac number, because 219228207 - 2³ = 219228199 is a prime.

It is a super-2 number, since 2×219228207² = 96122013488869698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219228287) 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, 27082 + ... + 34232.

It is an arithmetic number, because the mean of its divisors is an integer number (19954080).

Almost surely, 2^219228207 is an apocalyptic number.

219228207 is a deficient number, since it is larger than the sum of its proper divisors (100037073).

219228207 is a wasteful number, since it uses less digits than its factorization.

219228207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 219228207 is about 14806.3569793518. The cubic root of 219228207 is about 602.9743119728.

The spelling of 219228207 in words is "two hundred nineteen million, two hundred twenty-eight thousand, two hundred seven".