1052221200 has 60 divisors (see below), whose sum is σ = 3370619088. Its totient is φ = 280592000.

The previous prime is 1052221169. The next prime is 1052221211. The reversal of 1052221200 is 21222501.

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

It is a super-2 number, since 2×1052221200² = 2214338907458880000, 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 1052221200.

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, 437226 + ... + 439625.

Almost surely, 2^1052221200 is an apocalyptic number.

1052221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052221200 is an abundant number, since it is smaller than the sum of its proper divisors (2318397888).

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

1052221200 is a wasteful number, since it uses less digits than its factorization.

1052221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876872 (or 876861 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1052221200 is about 32437.9592453039. The cubic root of 1052221200 is about 1017.1125566598.

Adding to 1052221200 its reverse (21222501), we get a palindrome (1073443701).

The spelling of 1052221200 in words is "one billion, fifty-two million, two hundred twenty-one thousand, two hundred".