12022121221123 has 4 divisors (see below), whose sum is σ = 12946899776608. Its totient is φ = 11097342665640.

The previous prime is 12022121221073. The next prime is 12022121221139. The reversal of 12022121221123 is 32112212122021.

12022121221123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12022121221123 is a prime.

It is a super-2 number, since 2×12022121221123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022121221094 and 12022121221103.

It is not an unprimeable number, because it can be changed into a prime (12022121221153) 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, 462389277723 + ... + 462389277748.

It is an arithmetic number, because the mean of its divisors is an integer number (3236724944152).

Almost surely, 2^{12022121221123} is an apocalyptic number.

12022121221123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12022121221123 is a deficient number, since it is larger than the sum of its proper divisors (924778555485).

12022121221123 is an equidigital number, since it uses as much as digits as its factorization.

12022121221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924778555484.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12022121221123 its reverse (32112212122021), we get a palindrome (44134333343144).

The spelling of 12022121221123 in words is "twelve trillion, twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-three".