30212122230221 has 8 divisors (see below), whose sum is σ = 30301980641400. Its totient is φ = 30122265051648.

The previous prime is 30212122230203. The next prime is 30212122230229. The reversal of 30212122230221 is 12203222121203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1634598048196 + 28577524182025 = 1278514^2 + 5345795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30212122230221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212122230229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79291055 + ... + 79671171.

It is an arithmetic number, because the mean of its divisors is an integer number (3787747580175).

Almost surely, 2^{30212122230221} is an apocalyptic number.

It is an amenable number.

30212122230221 is a deficient number, since it is larger than the sum of its proper divisors (89858411179).

30212122230221 is a wasteful number, since it uses less digits than its factorization.

30212122230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616303.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 30212122230221 its reverse (12203222121203), we get a palindrome (42415344351424).

The spelling of 30212122230221 in words is "thirty trillion, two hundred twelve billion, one hundred twenty-two million, two hundred thirty thousand, two hundred twenty-one".