30967005221 has 4 divisors (see below), whose sum is σ = 31084750752. Its totient is φ = 30849259692.

The previous prime is 30967005211. The next prime is 30967005233. The reversal of 30967005221 is 12250076903.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12250076903 = 17 ⋅720592759.

It is a cyclic number.

It is not a de Polignac number, because 30967005221 - 2¹⁰ = 30967004197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30967005211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58872371 + ... + 58872896.

It is an arithmetic number, because the mean of its divisors is an integer number (7771187688).

Almost surely, 2^30967005221 is an apocalyptic number.

It is an amenable number.

30967005221 is a deficient number, since it is larger than the sum of its proper divisors (117745531).

30967005221 is a wasteful number, since it uses less digits than its factorization.

30967005221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117745530.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 30967005221 in words is "thirty billion, nine hundred sixty-seven million, five thousand, two hundred twenty-one".