12122011122101 has 4 divisors (see below), whose sum is σ = 12122018249952. Its totient is φ = 12122003994252.

The previous prime is 12122011122077. The next prime is 12122011122121. The reversal of 12122011122101 is 10122111022121.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12122011122101 - 2⁴² = 7723964610997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122011122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122011122121) 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, 640040 + ... + 4965246.

It is an arithmetic number, because the mean of its divisors is an integer number (3030504562488).

Almost surely, 2^{12122011122101} is an apocalyptic number.

It is an amenable number.

12122011122101 is a deficient number, since it is larger than the sum of its proper divisors (7127851).

12122011122101 is an equidigital number, since it uses as much as digits as its factorization.

12122011122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7127850.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12122011122101 its reverse (10122111022121), we get a palindrome (22244122144222).

The spelling of 12122011122101 in words is "twelve trillion, one hundred twenty-two billion, eleven million, one hundred twenty-two thousand, one hundred one".