12110000221 has 4 divisors (see below), whose sum is σ = 13210909344. Its totient is φ = 11009091100.

The previous prime is 12110000207. The next prime is 12110000249. The reversal of 12110000221 is 12200001121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12110000221 - 2¹³ = 12109992029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110000198 and 12110000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110000251) 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, 550454545 + ... + 550454566.

It is an arithmetic number, because the mean of its divisors is an integer number (3302727336).

Almost surely, 2^12110000221 is an apocalyptic number.

12110000221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12110000221 is a deficient number, since it is larger than the sum of its proper divisors (1100909123).

12110000221 is a wasteful number, since it uses less digits than its factorization.

12110000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100909122.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12110000221 its reverse (12200001121), we get a palindrome (24310001342).

The spelling of 12110000221 in words is "twelve billion, one hundred ten million, two hundred twenty-one", and thus it is an aban number.