201220030234 has 4 divisors (see below), whose sum is σ = 301830045354. Its totient is φ = 100610015116.

The previous prime is 201220030229. The next prime is 201220030237. The reversal of 201220030234 is 432030022102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 186300140625 + 14919889609 = 431625^2 + 122147^2 .

It is not an unprimeable number, because it can be changed into a prime (201220030237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50305007557 + ... + 50305007560.

Almost surely, 2^201220030234 is an apocalyptic number.

201220030234 is a deficient number, since it is larger than the sum of its proper divisors (100610015120).

201220030234 is a wasteful number, since it uses less digits than its factorization.

201220030234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100610015119.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 201220030234 its reverse (432030022102), we get a palindrome (633250052336).

The spelling of 201220030234 in words is "two hundred one billion, two hundred twenty million, thirty thousand, two hundred thirty-four".