1220219 has 32 divisors (see below), whose sum is σ = 1741824. Its totient is φ = 823680.

The previous prime is 1220203. The next prime is 1220239. The reversal of 1220219 is 9120221.

1220219 = T₃₂₂ + T₃₂₃ + ... + T₃₄₃.

It is not a de Polignac number, because 1220219 - 2⁴ = 1220203 is a prime.

It is a super-2 number, since 2×1220219² = 2977868815922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220197 and 1220206.

It is not an unprimeable number, because it can be changed into a prime (1220239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22997 + ... + 23049.

It is an arithmetic number, because the mean of its divisors is an integer number (54432).

2^1220219 is an apocalyptic number.

1220219 is a deficient number, since it is larger than the sum of its proper divisors (521605).

1220219 is a wasteful number, since it uses less digits than its factorization.

1220219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107.

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

The square root of 1220219 is about 1104.6352339121. The cubic root of 1220219 is about 106.8593662939.

It can be divided in two parts, 12202 and 19, that added together give a palindrome (12221).

The spelling of 1220219 in words is "one million, two hundred twenty thousand, two hundred nineteen".