12101000211 has 16 divisors (see below), whose sum is σ = 17947745920. Its totient is φ = 8058181320.

The previous prime is 12101000207. The next prime is 12101000221. The reversal of 12101000211 is 11200010121.

It is a happy number.

It is not a de Polignac number, because 12101000211 - 2² = 12101000207 is a prime.

It is a super-2 number, since 2×12101000211² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12101000193 and 12101000202.

It is not an unprimeable number, because it can be changed into a prime (12101000221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229945 + ... + 277626.

It is an arithmetic number, because the mean of its divisors is an integer number (1121734120).

Almost surely, 2^12101000211 is an apocalyptic number.

12101000211 is a deficient number, since it is larger than the sum of its proper divisors (5846745709).

12101000211 is an equidigital number, since it uses as much as digits as its factorization.

12101000211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508463 (or 508457 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12101000211 its reverse (11200010121), we get a palindrome (23301010332).

The spelling of 12101000211 in words is "twelve billion, one hundred one million, two hundred eleven", and thus it is an aban number.