219066226 has 4 divisors (see below), whose sum is σ = 328599342. Its totient is φ = 109533112.

The previous prime is 219066187. The next prime is 219066227. The reversal of 219066226 is 622660912.

219066226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 215062225 + 4004001 = 14665^2 + 2001^2 .

It is a super-2 number, since 2×219066226² = 95980022747766152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 219066191 and 219066200.

It is not an unprimeable number, because it can be changed into a prime (219066227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54766555 + ... + 54766558.

Almost surely, 2^219066226 is an apocalyptic number.

219066226 is a deficient number, since it is larger than the sum of its proper divisors (109533116).

219066226 is a wasteful number, since it uses less digits than its factorization.

219066226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109533115.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 219066226 is about 14800.8859869942. The cubic root of 219066226 is about 602.8257689720.

The spelling of 219066226 in words is "two hundred nineteen million, sixty-six thousand, two hundred twenty-six".