30122010221 has 8 divisors (see below), whose sum is σ = 32141728320. Its totient is φ = 28145727072.

The previous prime is 30122010211. The next prime is 30122010223. The reversal of 30122010221 is 12201022103.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30122010221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30122010196 and 30122010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122010223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10857305 + ... + 10860078.

It is an arithmetic number, because the mean of its divisors is an integer number (4017716040).

Almost surely, 2^30122010221 is an apocalyptic number.

It is an amenable number.

30122010221 is a deficient number, since it is larger than the sum of its proper divisors (2019718099).

30122010221 is a wasteful number, since it uses less digits than its factorization.

30122010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21717475.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 30122010221 its reverse (12201022103), we get a palindrome (42323032324).

The spelling of 30122010221 in words is "thirty billion, one hundred twenty-two million, ten thousand, two hundred twenty-one".