1220450322 has 32 divisors (see below), whose sum is σ = 3004186752. Its totient is φ = 321876864.

The previous prime is 1220450279. The next prime is 1220450347. The reversal of 1220450322 is 2230540221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1117083 + ... + 1118174.

It is an arithmetic number, because the mean of its divisors is an integer number (93880836).

Almost surely, 2^1220450322 is an apocalyptic number.

1220450322 is an abundant number, since it is smaller than the sum of its proper divisors (1783736430).

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

1220450322 is a wasteful number, since it uses less digits than its factorization.

1220450322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235282.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1220450322 is about 34934.9441390708. The cubic root of 1220450322 is about 1068.6611845896.

Adding to 1220450322 its reverse (2230540221), we get a palindrome (3450990543).

It can be divided in two parts, 12204 and 50322, that added together give a palindrome (62526).

The spelling of 1220450322 in words is "one billion, two hundred twenty million, four hundred fifty thousand, three hundred twenty-two".