122003000020 has 96 divisors (see below), whose sum is σ = 296794834560. Its totient is φ = 41634263040.

The previous prime is 122002999991. The next prime is 122003000027. The reversal of 122003000020 is 20000300221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 122002999970 and 122003000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122003000027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1250776 + ... + 1344784.

It is an arithmetic number, because the mean of its divisors is an integer number (3091612860).

Almost surely, 2^122003000020 is an apocalyptic number.

122003000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122003000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148397417280).

122003000020 is an abundant number, since it is smaller than the sum of its proper divisors (174791834540).

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

122003000020 is a wasteful number, since it uses less digits than its factorization.

122003000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94393 (or 94391 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 122003000020 its reverse (20000300221), we get a palindrome (142003300241).

The spelling of 122003000020 in words is "one hundred twenty-two billion, three million, twenty", and thus it is an aban number.