12020201122122 has 24 divisors (see below), whose sum is σ = 26043994903680. Its totient is φ = 4006698968040.

The previous prime is 12020201122121. The next prime is 12020201122123. The reversal of 12020201122122 is 22122110202021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12020201122121) and next prime (12020201122123).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12020201122095 and 12020201122104.

It is not an unprimeable number, because it can be changed into a prime (12020201122121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 716922 + ... + 4955237.

It is an arithmetic number, because the mean of its divisors is an integer number (1085166454320).

Almost surely, 2^{12020201122122} is an apocalyptic number.

12020201122122 is an abundant number, since it is smaller than the sum of its proper divisors (14023793781558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12020201122122 is a wasteful number, since it uses less digits than its factorization.

12020201122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5789898 (or 5789895 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12020201122122 its reverse (22122110202021), we get a palindrome (34142311324143).

The spelling of 12020201122122 in words is "twelve trillion, twenty billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-two".