1213222302 has 48 divisors (see below), whose sum is σ = 2674329840. Its totient is φ = 397440000.

The previous prime is 1213222273. The next prime is 1213222303. The reversal of 1213222302 is 2032223121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213222303) 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 23 ways as a sum of consecutive naturals, for example, 250302 + ... + 255102.

It is an arithmetic number, because the mean of its divisors is an integer number (55715205).

Almost surely, 2^1213222302 is an apocalyptic number.

1213222302 is an abundant number, since it is smaller than the sum of its proper divisors (1461107538).

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

1213222302 is a wasteful number, since it uses less digits than its factorization.

1213222302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049 (or 5046 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1213222302 is about 34831.3408010659. The cubic root of 1213222302 is about 1066.5473190471.

Adding to 1213222302 its reverse (2032223121), we get a palindrome (3245445423).

The spelling of 1213222302 in words is "one billion, two hundred thirteen million, two hundred twenty-two thousand, three hundred two".