12219780331 has 8 divisors (see below), whose sum is σ = 13910264064. Its totient is φ = 10625895720.

The previous prime is 12219780311. The next prime is 12219780359. The reversal of 12219780331 is 13308791221.

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

It is not a de Polignac number, because 12219780331 - 2¹¹ = 12219778283 is a prime.

It is a super-2 number, since 2×12219780331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12219780311) 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, 24149511 + ... + 24150016.

It is an arithmetic number, because the mean of its divisors is an integer number (1738783008).

Almost surely, 2^12219780331 is an apocalyptic number.

12219780331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12219780331 is a deficient number, since it is larger than the sum of its proper divisors (1690483733).

12219780331 is a wasteful number, since it uses less digits than its factorization.

12219780331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48299561.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 12219780331 in words is "twelve billion, two hundred nineteen million, seven hundred eighty thousand, three hundred thirty-one".