12120022200020 has 48 divisors (see below), whose sum is σ = 29088943903488. Its totient is φ = 4155308951040.

The previous prime is 12120022199983. The next prime is 12120022200037. The reversal of 12120022200020 is 2000222002121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12120022199968 and 12120022200004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3321425 + ... + 5939015.

It is an arithmetic number, because the mean of its divisors is an integer number (606019664656).

Almost surely, 2^{12120022200020} is an apocalyptic number.

12120022200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120022200020 is an abundant number, since it is smaller than the sum of its proper divisors (16968921703468).

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

12120022200020 is a wasteful number, since it uses less digits than its factorization.

12120022200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650680 (or 2650678 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12120022200020 its reverse (2000222002121), we get a palindrome (14120244202141).

The spelling of 12120022200020 in words is "twelve trillion, one hundred twenty billion, twenty-two million, two hundred thousand, twenty".