12211010145 has 16 divisors (see below), whose sum is σ = 21708462720. Its totient is φ = 6512538672.

The previous prime is 12211010099. The next prime is 12211010159. The reversal of 12211010145 is 54101011221.

It is not a de Polignac number, because 12211010145 - 2¹⁰ = 12211009121 is a prime.

It is a super-2 number, since 2×12211010145² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 45225829 + ... + 45226098.

It is an arithmetic number, because the mean of its divisors is an integer number (1356778920).

Almost surely, 2^12211010145 is an apocalyptic number.

12211010145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12211010145 is a deficient number, since it is larger than the sum of its proper divisors (9497452575).

12211010145 is an equidigital number, since it uses as much as digits as its factorization.

12211010145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90451941 (or 90451935 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 12211010145 its reverse (54101011221), we get a palindrome (66312021366).

The spelling of 12211010145 in words is "twelve billion, two hundred eleven million, ten thousand, one hundred forty-five".