122120122020 has 48 divisors (see below), whose sum is σ = 368239139520. Its totient is φ = 30060337536.

The previous prime is 122120122009. The next prime is 122120122027. The reversal of 122120122020 is 20221021221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (122120122027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78281350 + ... + 78282909.

It is an arithmetic number, because the mean of its divisors is an integer number (7671648740).

Almost surely, 2^122120122020 is an apocalyptic number.

122120122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122120122020 is an abundant number, since it is smaller than the sum of its proper divisors (246119017500).

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

122120122020 is a wasteful number, since it uses less digits than its factorization.

122120122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156564284 (or 156564282 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122120122020 its reverse (20221021221), we get a palindrome (142341143241).

The spelling of 122120122020 in words is "one hundred twenty-two billion, one hundred twenty million, one hundred twenty-two thousand, twenty".