30221235320252 has 12 divisors (see below), whose sum is σ = 52911168708216. Its totient is φ = 15103758546480.

The previous prime is 30221235320249. The next prime is 30221235320303. The reversal of 30221235320252 is 25202353212203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1714768499 + ... + 1714786122.

It is an arithmetic number, because the mean of its divisors is an integer number (4409264059018).

Almost surely, 2^{30221235320252} is an apocalyptic number.

It is an amenable number.

30221235320252 is a deficient number, since it is larger than the sum of its proper divisors (22689933387964).

30221235320252 is a wasteful number, since it uses less digits than its factorization.

30221235320252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429556828 (or 3429556826 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 30221235320252 its reverse (25202353212203), we get a palindrome (55423588532455).

The spelling of 30221235320252 in words is "thirty trillion, two hundred twenty-one billion, two hundred thirty-five million, three hundred twenty thousand, two hundred fifty-two".