2221213300 has 18 divisors (see below), whose sum is σ = 4820033078. Its totient is φ = 888485280.

The previous prime is 2221213229. The next prime is 2221213301. The reversal of 2221213300 is 33121222.

It can be written as a sum of positive squares in 3 ways, for example, as 101163364 + 2120049936 = 10058^2 + 46044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221213301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11105967 + ... + 11106166.

Almost surely, 2^2221213300 is an apocalyptic number.

2221213300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221213300 is an abundant number, since it is smaller than the sum of its proper divisors (2598819778).

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

2221213300 is a wasteful number, since it uses less digits than its factorization.

2221213300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22212147 (or 22212140 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2221213300 is about 47129.7496280216. The cubic root of 2221213300 is about 1304.7583606463.

Adding to 2221213300 its reverse (33121222), we get a palindrome (2254334522).

The spelling of 2221213300 in words is "two billion, two hundred twenty-one million, two hundred thirteen thousand, three hundred".