1222405415 has 16 divisors (see below), whose sum is σ = 1828846080. Its totient is φ = 762018720.

The previous prime is 1222405351. The next prime is 1222405421. The reversal of 1222405415 is 5145042221.

It is not a de Polignac number, because 1222405415 - 2⁶ = 1222405351 is a prime.

It is a congruent 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, 1587155 + ... + 1587924.

It is an arithmetic number, because the mean of its divisors is an integer number (114302880).

Almost surely, 2^1222405415 is an apocalyptic number.

1222405415 is a deficient number, since it is larger than the sum of its proper divisors (606440665).

1222405415 is a wasteful number, since it uses less digits than its factorization.

1222405415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175102.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1222405415 is about 34962.9148527408. The cubic root of 1222405415 is about 1069.2315252503.

Adding to 1222405415 its reverse (5145042221), we get a palindrome (6367447636).

The spelling of 1222405415 in words is "one billion, two hundred twenty-two million, four hundred five thousand, four hundred fifteen".