2352221000 has 64 divisors (see below), whose sum is σ = 5594574960. Its totient is φ = 925440000.

The previous prime is 2352220901. The next prime is 2352221023. The reversal of 2352221000 is 1222532.

It can be written as a sum of positive squares in 8 ways, for example, as 159921316 + 2192299684 = 12646^2 + 46822^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2352221000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41720 + ... + 80280.

Almost surely, 2^2352221000 is an apocalyptic number.

2352221000 is a gapful number since it is divisible by the number (20) 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 2352221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2797287480).

2352221000 is an abundant number, since it is smaller than the sum of its proper divisors (3242353960).

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

2352221000 is a wasteful number, since it uses less digits than its factorization.

2352221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38643 (or 38629 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2352221000 is about 48499.7010300064. The cubic root of 2352221000 is about 1329.9216039117.

Adding to 2352221000 its reverse (1222532), we get a palindrome (2353443532).

The spelling of 2352221000 in words is "two billion, three hundred fifty-two million, two hundred twenty-one thousand".