30212220321 has 48 divisors (see below), whose sum is σ = 47297157120. Its totient is φ = 19057744800.

The previous prime is 30212220277. The next prime is 30212220341. The reversal of 30212220321 is 12302221203.

30212220321 is a `hidden beast` number, since 302 + 1 + 22 + 20 + 321 = 666.

It is not a de Polignac number, because 30212220321 - 2²⁶ = 30145111457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30212220294 and 30212220303.

It is not an unprimeable number, because it can be changed into a prime (30212220341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11217451 + ... + 11220143.

It is an arithmetic number, because the mean of its divisors is an integer number (985357440).

Almost surely, 2^30212220321 is an apocalyptic number.

It is an amenable number.

30212220321 is a deficient number, since it is larger than the sum of its proper divisors (17084936799).

30212220321 is a wasteful number, since it uses less digits than its factorization.

30212220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891 (or 3866 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30212220321 its reverse (12302221203), we get a palindrome (42514441524).

The spelling of 30212220321 in words is "thirty billion, two hundred twelve million, two hundred twenty thousand, three hundred twenty-one".