122112122020 has 48 divisors (see below), whose sum is σ = 293696807040. Its totient is φ = 41777339904.

The previous prime is 122112122009. The next prime is 122112122047. The reversal of 122112122020 is 20221211221.

It is a happy number.

It is a super-2 number, since 2×122112122020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122112121985 and 122112122003.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 868485 + ... + 999244.

It is an arithmetic number, because the mean of its divisors is an integer number (6118683480).

Almost surely, 2^122112122020 is an apocalyptic number.

122112122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122112122020 is an abundant number, since it is smaller than the sum of its proper divisors (171584685020).

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

122112122020 is a wasteful number, since it uses less digits than its factorization.

122112122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868212 (or 1868210 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122112122020 its reverse (20221211221), we get a palindrome (142333333241).

The spelling of 122112122020 in words is "one hundred twenty-two billion, one hundred twelve million, one hundred twenty-two thousand, twenty".