1222301320 has 16 divisors (see below), whose sum is σ = 2750178060. Its totient is φ = 488920512.

The previous prime is 1222301291. The next prime is 1222301323. The reversal of 1222301320 is 231032221.

It can be written as a sum of positive squares in 2 ways, for example, as 1208118564 + 14182756 = 34758^2 + 3766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1222301294 and 1222301303.

It is not an unprimeable number, because it can be changed into a prime (1222301323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15278727 + ... + 15278806.

Almost surely, 2^1222301320 is an apocalyptic number.

1222301320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222301320 is an abundant number, since it is smaller than the sum of its proper divisors (1527876740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222301320 is a wasteful number, since it uses less digits than its factorization.

1222301320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30557544 (or 30557540 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1222301320 is about 34961.4261722831. The cubic root of 1222301320 is about 1069.2011739409.

Adding to 1222301320 its reverse (231032221), we get a palindrome (1453333541).

The spelling of 1222301320 in words is "one billion, two hundred twenty-two million, three hundred one thousand, three hundred twenty".