12222000012123 has 36 divisors (see below), whose sum is σ = 19407214610784. Its totient is φ = 7406354815200.

The previous prime is 12222000012073. The next prime is 12222000012139. The reversal of 12222000012123 is 32121000022221.

It is not a de Polignac number, because 12222000012123 - 2¹² = 12222000008027 is a prime.

It is a super-2 number, since 2×12222000012123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12222000012096 and 12222000012105.

It is not an unprimeable number, because it can be changed into a prime (12222000412123) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8148078 + ... + 9530748.

It is an arithmetic number, because the mean of its divisors is an integer number (539089294744).

Almost surely, 2^{12222000012123} is an apocalyptic number.

12222000012123 is a deficient number, since it is larger than the sum of its proper divisors (7185214598661).

12222000012123 is a wasteful number, since it uses less digits than its factorization.

12222000012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390816 (or 1390802 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12222000012123 its reverse (32121000022221), we get a palindrome (44343000034344).

The spelling of 12222000012123 in words is "twelve trillion, two hundred twenty-two billion, twelve thousand, one hundred twenty-three".