1222407915 has 8 divisors (see below), whose sum is σ = 1955852688. Its totient is φ = 651950880.

The previous prime is 1222407889. The next prime is 1222407919. The reversal of 1222407915 is 5197042221.

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

It is not a de Polignac number, because 1222407915 - 2¹¹ = 1222405867 is a prime.

It is a super-2 number, since 2×1222407915² = 2988562221309294450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222407919) 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, 40746916 + ... + 40746945.

It is an arithmetic number, because the mean of its divisors is an integer number (244481586).

Almost surely, 2^1222407915 is an apocalyptic number.

1222407915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1222407915 is a deficient number, since it is larger than the sum of its proper divisors (733444773).

1222407915 is an equidigital number, since it uses as much as digits as its factorization.

1222407915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81493869.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1222407915 is about 34962.9506048903. The cubic root of 1222407915 is about 1069.2322541621.

The spelling of 1222407915 in words is "one billion, two hundred twenty-two million, four hundred seven thousand, nine hundred fifteen".