1226222615 has 8 divisors (see below), whose sum is σ = 1505687568. Its totient is φ = 958164480.

The previous prime is 1226222609. The next prime is 1226222623. The reversal of 1226222615 is 5162226221.

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

It is not a de Polignac number, because 1226222615 - 2²⁶ = 1159113751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2851466 + ... + 2851895.

It is an arithmetic number, because the mean of its divisors is an integer number (188210946).

Almost surely, 2^1226222615 is an apocalyptic number.

1226222615 is a deficient number, since it is larger than the sum of its proper divisors (279464953).

1226222615 is an equidigital number, since it uses as much as digits as its factorization.

1226222615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703409.

The product of its digits is 5760, while the sum is 29.

The square root of 1226222615 is about 35017.4615727640. The cubic root of 1226222615 is about 1070.3433302992.

Adding to 1226222615 its reverse (5162226221), we get a palindrome (6388448836).

The spelling of 1226222615 in words is "one billion, two hundred twenty-six million, two hundred twenty-two thousand, six hundred fifteen".