1222646515 has 8 divisors (see below), whose sum is σ = 1472185008. Its totient is φ = 974777760.

The previous prime is 1222646473. The next prime is 1222646539. The reversal of 1222646515 is 5156462221.

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

It is not a de Polignac number, because 1222646515 - 2⁷ = 1222646387 is a prime.

It is a Duffinian 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, 415821 + ... + 418750.

It is an arithmetic number, because the mean of its divisors is an integer number (184023126).

Almost surely, 2^1222646515 is an apocalyptic number.

1222646515 is a deficient number, since it is larger than the sum of its proper divisors (249538493).

1222646515 is an equidigital number, since it uses as much as digits as its factorization.

1222646515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834869.

The product of its digits is 28800, while the sum is 34.

The square root of 1222646515 is about 34966.3626218113. The cubic root of 1222646515 is about 1069.3018169258.

The spelling of 1222646515 in words is "one billion, two hundred twenty-two million, six hundred forty-six thousand, five hundred fifteen".