1222622619 has 8 divisors (see below), whose sum is σ = 1649804352. Its totient is φ = 805261320.

The previous prime is 1222622617. The next prime is 1222622647. The reversal of 1222622619 is 9162262221.

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

It is not a de Polignac number, because 1222622619 - 2¹ = 1222622617 is a prime.

It is a super-2 number, since 2×1222622619² = 2989612136980838322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222622619.

It is not an unprimeable number, because it can be changed into a prime (1222622617) 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, 2454817 + ... + 2455314.

It is an arithmetic number, because the mean of its divisors is an integer number (206225544).

Almost surely, 2^1222622619 is an apocalyptic number.

1222622619 is a deficient number, since it is larger than the sum of its proper divisors (427181733).

1222622619 is an equidigital number, since it uses as much as digits as its factorization.

1222622619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910217.

The product of its digits is 10368, while the sum is 33.

The square root of 1222622619 is about 34966.0209203163. The cubic root of 1222622619 is about 1069.2948505616.

The spelling of 1222622619 in words is "one billion, two hundred twenty-two million, six hundred twenty-two thousand, six hundred nineteen".