12120122121164 has 12 divisors (see below), whose sum is σ = 21526784066424. Its totient is φ = 5969612387904.

The previous prime is 12120122121161. The next prime is 12120122121167. The reversal of 12120122121164 is 46112122102121.

It is an interprime number because it is at equal distance from previous prime (12120122121161) and next prime (12120122121167).

It is not an unprimeable number, because it can be changed into a prime (12120122121161) 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, 22612167869 + ... + 22612168404.

It is an arithmetic number, because the mean of its divisors is an integer number (1793898672202).

Almost surely, 2^{12120122121164} is an apocalyptic number.

It is an amenable number.

12120122121164 is a deficient number, since it is larger than the sum of its proper divisors (9406661945260).

12120122121164 is a wasteful number, since it uses less digits than its factorization.

12120122121164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45224336344 (or 45224336342 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

Adding to 12120122121164 its reverse (46112122102121), we get a palindrome (58232244223285).

The spelling of 12120122121164 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred sixty-four".