30221023020212 has 6 divisors (see below), whose sum is σ = 52886790285378. Its totient is φ = 15110511510104.

The previous prime is 30221023020197. The next prime is 30221023020217. The reversal of 30221023020212 is 21202032012203.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24964852362256 + 5256170657956 = 4996484^2 + 2292634^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221023020217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3777627877523 + ... + 3777627877530.

It is an arithmetic number, because the mean of its divisors is an integer number (8814465047563).

Almost surely, 2^{30221023020212} is an apocalyptic number.

It is an amenable number.

30221023020212 is a deficient number, since it is larger than the sum of its proper divisors (22665767265166).

30221023020212 is a wasteful number, since it uses less digits than its factorization.

30221023020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7555255755057 (or 7555255755055 counting only the distinct ones).

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

Adding to 30221023020212 its reverse (21202032012203), we get a palindrome (51423055032415).

The spelling of 30221023020212 in words is "thirty trillion, two hundred twenty-one billion, twenty-three million, twenty thousand, two hundred twelve".