12030722217 has 24 divisors (see below), whose sum is σ = 18362822400. Its totient is φ = 7574643648.

The previous prime is 12030722213. The next prime is 12030722237. The reversal of 12030722217 is 71222703021.

12030722217 is a `hidden beast` number, since 120 + 307 + 22 + 217 = 666.

It is not a de Polignac number, because 12030722217 - 2² = 12030722213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12030722213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 351492 + ... + 384197.

It is an arithmetic number, because the mean of its divisors is an integer number (765117600).

Almost surely, 2^12030722217 is an apocalyptic number.

It is an amenable number.

12030722217 is a deficient number, since it is larger than the sum of its proper divisors (6332100183).

12030722217 is a wasteful number, since it uses less digits than its factorization.

12030722217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735797 (or 735794 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The spelling of 12030722217 in words is "twelve billion, thirty million, seven hundred twenty-two thousand, two hundred seventeen".