30021231220229 has 4 divisors (see below), whose sum is σ = 30021939761676. Its totient is φ = 30020522678784.

The previous prime is 30021231220217. The next prime is 30021231220249. The reversal of 30021231220229 is 92202213212003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5374524163204 + 24646707057025 = 2318302^2 + 4964545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30021231220229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021231220249) 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 in 3 ways as a sum of consecutive naturals, for example, 354207164 + ... + 354291909.

It is an arithmetic number, because the mean of its divisors is an integer number (7505484940419).

Almost surely, 2^{30021231220229} is an apocalyptic number.

It is an amenable number.

30021231220229 is a deficient number, since it is larger than the sum of its proper divisors (708541447).

30021231220229 is an equidigital number, since it uses as much as digits as its factorization.

30021231220229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708541446.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 30021231220229 in words is "thirty trillion, twenty-one billion, two hundred thirty-one million, two hundred twenty thousand, two hundred twenty-nine".