30232222121 has 16 divisors (see below), whose sum is σ = 30968395920. Its totient is φ = 29506498560.

The previous prime is 30232222091. The next prime is 30232222129. The reversal of 30232222121 is 12122223203.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 41422096 + 30190800025 = 6436^2 + 173755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30232222121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30232222093 and 30232222102.

It is not an unprimeable number, because it can be changed into a prime (30232222129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3422891 + ... + 3431711.

It is an arithmetic number, because the mean of its divisors is an integer number (1935524745).

Almost surely, 2^30232222121 is an apocalyptic number.

It is an amenable number.

30232222121 is a deficient number, since it is larger than the sum of its proper divisors (736173799).

30232222121 is an equidigital number, since it uses as much as digits as its factorization.

30232222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9404.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 30232222121 its reverse (12122223203), we get a palindrome (42354445324).

The spelling of 30232222121 in words is "thirty billion, two hundred thirty-two million, two hundred twenty-two thousand, one hundred twenty-one".