1222210019 has 8 divisors (see below), whose sum is σ = 1311833520. Its totient is φ = 1134556416.

The previous prime is 1222210013. The next prime is 1222210039. The reversal of 1222210019 is 9100122221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222210019 - 2⁸ = 1222209763 is a prime.

It is a super-2 number, since 2×1222210019² = 2987594661087960722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222210013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491189 + ... + 493670.

It is an arithmetic number, because the mean of its divisors is an integer number (163979190).

Almost surely, 2^1222210019 is an apocalyptic number.

1222210019 is a deficient number, since it is larger than the sum of its proper divisors (89623501).

1222210019 is an equidigital number, since it uses as much as digits as its factorization.

1222210019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984949.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1222210019 is about 34960.1204088315. The cubic root of 1222210019 is about 1069.1745516000.

The spelling of 1222210019 in words is "one billion, two hundred twenty-two million, two hundred ten thousand, nineteen".