1220000219 has 4 divisors (see below), whose sum is σ = 1225471296. Its totient is φ = 1214529144.

The previous prime is 1220000191. The next prime is 1220000231. The reversal of 1220000219 is 9120000221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220000219 - 2²⁴ = 1203223003 is a prime.

It is a super-2 number, since 2×1220000219² = 2976801068720095922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220000197 and 1220000206.

It is not an unprimeable number, because it can be changed into a prime (1220002219) 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 3 ways as a sum of consecutive naturals, for example, 2735204 + ... + 2735649.

It is an arithmetic number, because the mean of its divisors is an integer number (306367824).

Almost surely, 2^1220000219 is an apocalyptic number.

1220000219 is a deficient number, since it is larger than the sum of its proper divisors (5471077).

1220000219 is an equidigital number, since it uses as much as digits as its factorization.

1220000219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471076.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1220000219 is about 34928.5015281217. The cubic root of 1220000219 is about 1068.5297940855.

The spelling of 1220000219 in words is "one billion, two hundred twenty million, two hundred nineteen", and thus it is an aban number.