30202112221021 has 8 divisors (see below), whose sum is σ = 32526903772160. Its totient is φ = 27877542405552.

The previous prime is 30202112220989. The next prime is 30202112221091. The reversal of 30202112221021 is 12012221120203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30202112221021 - 2⁵ = 30202112220989 is a prime.

It is a super-2 number, since 2×30202112221021² (a number of 28 digits) contains 22 as substring.

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 30202112221021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202112221091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55150965 + ... + 55695898.

It is an arithmetic number, because the mean of its divisors is an integer number (4065862971520).

Almost surely, 2^{30202112221021} is an apocalyptic number.

It is an amenable number.

30202112221021 is a deficient number, since it is larger than the sum of its proper divisors (2324791551139).

30202112221021 is a wasteful number, since it uses less digits than its factorization.

30202112221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110867835.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 30202112221021 its reverse (12012221120203), we get a palindrome (42214333341224).

The spelling of 30202112221021 in words is "thirty trillion, two hundred two billion, one hundred twelve million, two hundred twenty-one thousand, twenty-one".