1322224002 has 48 divisors (see below), whose sum is σ = 3138445440. Its totient is φ = 398983200.

The previous prime is 1322223989. The next prime is 1322224021. The reversal of 1322224002 is 2004222231.

It is a super-2 number, since 2×1322224002² = 3496552622929792008, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33352 + ... + 61292.

It is an arithmetic number, because the mean of its divisors is an integer number (65384280).

Almost surely, 2^1322224002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322224002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569222720).

1322224002 is an abundant number, since it is smaller than the sum of its proper divisors (1816221438).

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

1322224002 is a wasteful number, since it uses less digits than its factorization.

1322224002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28199 (or 28196 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1322224002 is about 36362.3981882384. The cubic root of 1322224002 is about 1097.5770365685.

Adding to 1322224002 its reverse (2004222231), we get a palindrome (3326446233).

The spelling of 1322224002 in words is "one billion, three hundred twenty-two million, two hundred twenty-four thousand, two".