1222099505 has 16 divisors (see below), whose sum is σ = 1638862848. Its totient is φ = 867120000.

The previous prime is 1222099477. The next prime is 1222099531. The reversal of 1222099505 is 5059902221.

It is not a de Polignac number, because 1222099505 - 2¹⁰ = 1222098481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268721 + ... + 273230.

It is an arithmetic number, because the mean of its divisors is an integer number (102428928).

Almost surely, 2^1222099505 is an apocalyptic number.

It is an amenable number.

1222099505 is a deficient number, since it is larger than the sum of its proper divisors (416763343).

1222099505 is a wasteful number, since it uses less digits than its factorization.

1222099505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542008.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 1222099505 is about 34958.5398007411. The cubic root of 1222099505 is about 1069.1423251915.

The spelling of 1222099505 in words is "one billion, two hundred twenty-two million, ninety-nine thousand, five hundred five".