1322211200 has 96 divisors (see below), whose sum is σ = 3299420520. Its totient is φ = 523520000.

The previous prime is 1322211199. The next prime is 1322211223. The reversal of 1322211200 is 21122231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321155 + ... + 325245.

Almost surely, 2^1322211200 is an apocalyptic number.

1322211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1649710260).

1322211200 is an abundant number, since it is smaller than the sum of its proper divisors (1977209320).

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

1322211200 is a wasteful number, since it uses less digits than its factorization.

1322211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216 (or 4199 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1322211200 is about 36362.2221543183. Note that the first 3 decimals coincide. The cubic root of 1322211200 is about 1097.5734942473.

Adding to 1322211200 its reverse (21122231), we get a palindrome (1343333431).

The spelling of 1322211200 in words is "one billion, three hundred twenty-two million, two hundred eleven thousand, two hundred".