122001220020 has 24 divisors (see below), whose sum is σ = 341603416224. Its totient is φ = 32533658656.

The previous prime is 122001219961. The next prime is 122001220049. The reversal of 122001220020 is 20022100221.

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 = 122001219978 and 122001220005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016676774 + ... + 1016676893.

It is an arithmetic number, because the mean of its divisors is an integer number (14233475676).

Almost surely, 2^122001220020 is an apocalyptic number.

122001220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122001220020 is an abundant number, since it is smaller than the sum of its proper divisors (219602196204).

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

122001220020 is a wasteful number, since it uses less digits than its factorization.

122001220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033353679 (or 2033353677 counting only the distinct ones).

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

Adding to 122001220020 its reverse (20022100221), we get a palindrome (142023320241).

The spelling of 122001220020 in words is "one hundred twenty-two billion, one million, two hundred twenty thousand, twenty".