12120210122020 has 144 divisors (see below), whose sum is σ = 34784155885248. Its totient is φ = 3487133341440.

The previous prime is 12120210121963. The next prime is 12120210122021. The reversal of 12120210122020 is 2022101202121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12120210121985 and 12120210122003.

It is not an unprimeable number, because it can be changed into a prime (12120210122021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43103082 + ... + 43383361.

It is an arithmetic number, because the mean of its divisors is an integer number (241556638092).

Almost surely, 2^{12120210122020} is an apocalyptic number.

12120210122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120210122020 is an abundant number, since it is smaller than the sum of its proper divisors (22663945763228).

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

12120210122020 is a wasteful number, since it uses less digits than its factorization.

12120210122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86486490 (or 86486481 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12120210122020 its reverse (2022101202121), we get a palindrome (14142311324141).

The spelling of 12120210122020 in words is "twelve trillion, one hundred twenty billion, two hundred ten million, one hundred twenty-two thousand, twenty".