30221023212129 has 4 divisors (see below), whose sum is σ = 40294697616176. Its totient is φ = 20147348808084.

The previous prime is 30221023212091. The next prime is 30221023212179. The reversal of 30221023212129 is 92121232012203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-30221023212129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30221023212096 and 30221023212105.

It is not an unprimeable number, because it can be changed into a prime (30221023212179) 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, 5036837202019 + ... + 5036837202024.

It is an arithmetic number, because the mean of its divisors is an integer number (10073674404044).

Almost surely, 2^{30221023212129} is an apocalyptic number.

It is an amenable number.

30221023212129 is a deficient number, since it is larger than the sum of its proper divisors (10073674404047).

30221023212129 is a wasteful number, since it uses less digits than its factorization.

30221023212129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10073674404046.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 30221023212129 in words is "thirty trillion, two hundred twenty-one billion, twenty-three million, two hundred twelve thousand, one hundred twenty-nine".