12110000000021 has 32 divisors (see below), whose sum is σ = 15585716822016. Its totient is φ = 9131673672000.

The previous prime is 12110000000003. The next prime is 12110000000023. The reversal of 12110000000021 is 12000000001121.

It is not a de Polignac number, because 12110000000021 - 2¹⁰ = 12109999998997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12109999999936 and 12110000000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110000000023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101557391 + ... + 101676563.

It is an arithmetic number, because the mean of its divisors is an integer number (487053650688).

Almost surely, 2^{12110000000021} is an apocalyptic number.

12110000000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12110000000021 is a deficient number, since it is larger than the sum of its proper divisors (3475716821995).

12110000000021 is a wasteful number, since it uses less digits than its factorization.

12110000000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161793.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12110000000021 its reverse (12000000001121), we get a palindrome (24110000001142).

The spelling of 12110000000021 in words is "twelve trillion, one hundred ten billion, twenty-one", and thus it is an aban number.