12211210019 has 4 divisors (see below), whose sum is σ = 12223533120. Its totient is φ = 12198886920.

The previous prime is 12211210009. The next prime is 12211210043. The reversal of 12211210019 is 91001211221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12211210019 - 2¹⁶ = 12211144483 is a prime.

It is a super-2 number, since 2×12211210019² (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 (12211210009) 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, 6160064 + ... + 6162045.

It is an arithmetic number, because the mean of its divisors is an integer number (3055883280).

Almost surely, 2^12211210019 is an apocalyptic number.

12211210019 is a deficient number, since it is larger than the sum of its proper divisors (12323101).

12211210019 is an equidigital number, since it uses as much as digits as its factorization.

12211210019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12323100.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 12211210019 in words is "twelve billion, two hundred eleven million, two hundred ten thousand, nineteen".