12122110000021 has 16 divisors (see below), whose sum is σ = 14179161268224. Its totient is φ = 10147344009264.

The previous prime is 12122109999973. The next prime is 12122110000067. The reversal of 12122110000021 is 12000001122121.

It is not a de Polignac number, because 12122110000021 - 2²³ = 12122101611413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12122109999956 and 12122110000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122110040021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39637435 + ... + 39942088.

It is an arithmetic number, because the mean of its divisors is an integer number (886197579264).

Almost surely, 2^{12122110000021} is an apocalyptic number.

It is an amenable number.

12122110000021 is a deficient number, since it is larger than the sum of its proper divisors (2057051268203).

12122110000021 is an equidigital number, since it uses as much as digits as its factorization.

12122110000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79580040.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12122110000021 its reverse (12000001122121), we get a palindrome (24122111122142).

The spelling of 12122110000021 in words is "twelve trillion, one hundred twenty-two billion, one hundred ten million, twenty-one", and thus it is an aban number.