1322113200 has 60 divisors (see below), whose sum is σ = 4235173128. Its totient is φ = 352563200.

The previous prime is 1322113099. The next prime is 1322113231. The reversal of 1322113200 is 23112231.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×1322113200² = 3495966627228480000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1322113200.

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, 549681 + ... + 552080.

Almost surely, 2^1322113200 is an apocalyptic number.

1322113200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322113200 is an abundant number, since it is smaller than the sum of its proper divisors (2913059928).

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

1322113200 is a wasteful number, since it uses less digits than its factorization.

1322113200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101782 (or 1101771 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1322113200 is about 36360.8745769405. The cubic root of 1322113200 is about 1097.5463768296.

Adding to 1322113200 its reverse (23112231), we get a palindrome (1345225431).

The spelling of 1322113200 in words is "one billion, three hundred twenty-two million, one hundred thirteen thousand, two hundred".