2051227200 has 336 divisors, whose sum is σ = 7490252736. Its totient is φ = 487219200.

The previous prime is 2051227183. The next prime is 2051227229. The reversal of 2051227200 is 27221502.

2051227200 = 433² + 434² + ... + 1840².

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2798034 + ... + 2798766.

Almost surely, 2^2051227200 is an apocalyptic number.

2051227200 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 2051227200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3745126368).

2051227200 is an abundant number, since it is smaller than the sum of its proper divisors (5439025536).

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

2051227200 is a wasteful number, since it uses less digits than its factorization.

2051227200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2051227200 is about 45290.4758199779. The cubic root of 2051227200 is about 1270.5875306621.

Adding to 2051227200 its reverse (27221502), we get a palindrome (2078448702).

The spelling of 2051227200 in words is "two billion, fifty-one million, two hundred twenty-seven thousand, two hundred".