1222818530 has 32 divisors (see below), whose sum is σ = 2320920000. Its totient is φ = 462583872.

The previous prime is 1222818479. The next prime is 1222818533. The reversal of 1222818530 is 358182221.

It is a happy number.

It is a super-2 number, since 2×1222818530² = 2990570314622721800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222818533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111221 + ... + 121719.

It is an arithmetic number, because the mean of its divisors is an integer number (72528750).

Almost surely, 2^1222818530 is an apocalyptic number.

1222818530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222818530 is a deficient number, since it is larger than the sum of its proper divisors (1098101470).

1222818530 is a wasteful number, since it uses less digits than its factorization.

1222818530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11138.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1222818530 is about 34968.8222564043. The cubic root of 1222818530 is about 1069.3519615163.

The spelling of 1222818530 in words is "one billion, two hundred twenty-two million, eight hundred eighteen thousand, five hundred thirty".