12012022122101 has 4 divisors (see below), whose sum is σ = 12012041162604. Its totient is φ = 12012003081600.

The previous prime is 12012022122097. The next prime is 12012022122257. The reversal of 12012022122101 is 10122122021021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1601171359876 + 10410850762225 = 1265374^2 + 3226585^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012022122101 - 2² = 12012022122097 is a prime.

It is a super-2 number, since 2×12012022122101² (a number of 27 digits) contains 22 as substring.

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 12012022122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012022122301) 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, 8540330 + ... + 9846891.

It is an arithmetic number, because the mean of its divisors is an integer number (3003010290651).

Almost surely, 2^{12012022122101} is an apocalyptic number.

It is an amenable number.

12012022122101 is a deficient number, since it is larger than the sum of its proper divisors (19040503).

12012022122101 is an equidigital number, since it uses as much as digits as its factorization.

12012022122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19040502.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12012022122101 its reverse (10122122021021), we get a palindrome (22134144143122).

The spelling of 12012022122101 in words is "twelve trillion, twelve billion, twenty-two million, one hundred twenty-two thousand, one hundred one".