12221830551 has 32 divisors (see below), whose sum is σ = 19461731328. Its totient is φ = 6670540800.

The previous prime is 12221830549. The next prime is 12221830573. The reversal of 12221830551 is 15503812221.

It is not a de Polignac number, because 12221830551 - 2¹ = 12221830549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221831551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320535 + ... + 356631.

It is an arithmetic number, because the mean of its divisors is an integer number (608179104).

Almost surely, 2^12221830551 is an apocalyptic number.

12221830551 is a deficient number, since it is larger than the sum of its proper divisors (7239900777).

12221830551 is a wasteful number, since it uses less digits than its factorization.

12221830551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36831.

The product of its (nonzero) digits is 4800, while the sum is 30.

The spelling of 12221830551 in words is "twelve billion, two hundred twenty-one million, eight hundred thirty thousand, five hundred fifty-one".