1222203532 has 48 divisors (see below), whose sum is σ = 2480792832. Its totient is φ = 521343680.

The previous prime is 1222203527. The next prime is 1222203539. The reversal of 1222203532 is 2353022221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1222203539) 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 15 ways as a sum of consecutive naturals, for example, 42243 + ... + 65029.

It is an arithmetic number, because the mean of its divisors is an integer number (51683184).

Almost surely, 2^1222203532 is an apocalyptic number.

It is an amenable number.

1222203532 is an abundant number, since it is smaller than the sum of its proper divisors (1258589300).

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

1222203532 is a wasteful number, since it uses less digits than its factorization.

1222203532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22878 (or 22876 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1222203532 is about 34960.0276315680. The cubic root of 1222203532 is about 1069.1726600136.

Adding to 1222203532 its reverse (2353022221), we get a palindrome (3575225753).

The spelling of 1222203532 in words is "one billion, two hundred twenty-two million, two hundred three thousand, five hundred thirty-two".