30442221200 has 60 divisors (see below), whose sum is σ = 74921316708. Its totient is φ = 11879884800.

The previous prime is 30442221179. The next prime is 30442221203. The reversal of 30442221200 is 212224403.

It can be written as a sum of positive squares in 6 ways, for example, as 8123056384 + 22319164816 = 90128^2 + 149396^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (30442221203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 911717 + ... + 944516.

Almost surely, 2^30442221200 is an apocalyptic number.

It is an amenable number.

30442221200 is an abundant number, since it is smaller than the sum of its proper divisors (44479095508).

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

30442221200 is a wasteful number, since it uses less digits than its factorization.

30442221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856292 (or 1856281 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 30442221200 its reverse (212224403), we get a palindrome (30654445603).

The spelling of 30442221200 in words is "thirty billion, four hundred forty-two million, two hundred twenty-one thousand, two hundred".