1321223350 has 24 divisors (see below), whose sum is σ = 2491146360. Its totient is φ = 521248320.

The previous prime is 1321223347. The next prime is 1321223353. The reversal of 1321223350 is 533221231.

It is an interprime number because it is at equal distance from previous prime (1321223347) and next prime (1321223353).

It is a super-2 number, since 2×1321223350² = 3491262281170445000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321223353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177340 + ... + 184639.

It is an arithmetic number, because the mean of its divisors is an integer number (103797765).

Almost surely, 2^1321223350 is an apocalyptic number.

1321223350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321223350 is a deficient number, since it is larger than the sum of its proper divisors (1169923010).

1321223350 is a wasteful number, since it uses less digits than its factorization.

1321223350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362064 (or 362059 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1321223350 is about 36348.6361504803. The cubic root of 1321223350 is about 1097.3000865630.

Adding to 1321223350 its reverse (533221231), we get a palindrome (1854444581).

The spelling of 1321223350 in words is "one billion, three hundred twenty-one million, two hundred twenty-three thousand, three hundred fifty".