12072219638 has 8 divisors (see below), whose sum is σ = 18112025520. Its totient is φ = 6034877800.

The previous prime is 12072219631. The next prime is 12072219641. The reversal of 12072219638 is 83691227021.

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

It is a super-2 number, since 2×12072219638² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12072219595 and 12072219604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072219631) 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, 603713 + ... + 623388.

It is an arithmetic number, because the mean of its divisors is an integer number (2264003190).

Almost surely, 2^12072219638 is an apocalyptic number.

12072219638 is a deficient number, since it is larger than the sum of its proper divisors (6039805882).

12072219638 is a wasteful number, since it uses less digits than its factorization.

12072219638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232022.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 12072219638 in words is "twelve billion, seventy-two million, two hundred nineteen thousand, six hundred thirty-eight".