122020200120 has 128 divisors (see below), whose sum is σ = 450536163840. Its totient is φ = 25744919040.

The previous prime is 122020200101. The next prime is 122020200157. The reversal of 122020200120 is 21002020221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 122020200096 and 122020200105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5576086 + ... + 5597925.

It is an arithmetic number, because the mean of its divisors is an integer number (3519813780).

Almost surely, 2^122020200120 is an apocalyptic number.

122020200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122020200120 is an abundant number, since it is smaller than the sum of its proper divisors (328515963720).

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

122020200120 is a wasteful number, since it uses less digits than its factorization.

122020200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174045 (or 11174041 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 122020200120 its reverse (21002020221), we get a palindrome (143022220341).

The spelling of 122020200120 in words is "one hundred twenty-two billion, twenty million, two hundred thousand, one hundred twenty".