30030221001221 has 16 divisors (see below), whose sum is σ = 35448209817600. Its totient is φ = 24895198949040.

The previous prime is 30030221001181. The next prime is 30030221001271. The reversal of 30030221001221 is 12210012203003.

It is not a de Polignac number, because 30030221001221 - 2³⁴ = 30013041132037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30030221001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30030221001271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40357661 + ... + 41095026.

It is an arithmetic number, because the mean of its divisors is an integer number (2215513113600).

Almost surely, 2^{30030221001221} is an apocalyptic number.

30030221001221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30030221001221 is a deficient number, since it is larger than the sum of its proper divisors (5417988816379).

30030221001221 is a wasteful number, since it uses less digits than its factorization.

30030221001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81454424.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30030221001221 its reverse (12210012203003), we get a palindrome (42240233204224).

The spelling of 30030221001221 in words is "thirty trillion, thirty billion, two hundred twenty-one million, one thousand, two hundred twenty-one".