30002221021221 has 12 divisors (see below), whose sum is σ = 45220738930848. Its totient is φ = 19131851085864.

The previous prime is 30002221021193. The next prime is 30002221021273. The reversal of 30002221021221 is 12212012220003.

It is not a de Polignac number, because 30002221021221 - 2⁵ = 30002221021189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30002221021194 and 30002221021203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002221021321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72469132695 + ... + 72469133108.

It is an arithmetic number, because the mean of its divisors is an integer number (3768394910904).

Almost surely, 2^{30002221021221} is an apocalyptic number.

It is an amenable number.

30002221021221 is a deficient number, since it is larger than the sum of its proper divisors (15218517909627).

30002221021221 is a wasteful number, since it uses less digits than its factorization.

30002221021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144938265832 (or 144938265829 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 30002221021221 its reverse (12212012220003), we get a palindrome (42214233241224).

The spelling of 30002221021221 in words is "thirty trillion, two billion, two hundred twenty-one million, twenty-one thousand, two hundred twenty-one".