1222035320 has 32 divisors (see below), whose sum is σ = 2999542320. Its totient is φ = 444376320.

The previous prime is 1222035313. The next prime is 1222035323. The reversal of 1222035320 is 235302221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1222035292 and 1222035301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222035323) 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, 1388237 + ... + 1389116.

Almost surely, 2^1222035320 is an apocalyptic number.

1222035320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222035320 is an abundant number, since it is smaller than the sum of its proper divisors (1777507000).

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

1222035320 is a wasteful number, since it uses less digits than its factorization.

1222035320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777375 (or 2777371 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1222035320 is about 34957.6217726550. The cubic root of 1222035320 is about 1069.1236076482.

Adding to 1222035320 its reverse (235302221), we get a palindrome (1457337541).

The spelling of 1222035320 in words is "one billion, two hundred twenty-two million, thirty-five thousand, three hundred twenty".