122011020020 has 48 divisors (see below), whose sum is σ = 258562801728. Its totient is φ = 48359001600.

The previous prime is 122011019981. The next prime is 122011020023. The reversal of 122011020020 is 20020110221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122011019983 and 122011020010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011020023) 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 15 ways as a sum of consecutive naturals, for example, 13218647 + ... + 13227873.

It is an arithmetic number, because the mean of its divisors is an integer number (5386725036).

Almost surely, 2^122011020020 is an apocalyptic number.

122011020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122011020020 is an abundant number, since it is smaller than the sum of its proper divisors (136551781708).

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

122011020020 is a wasteful number, since it uses less digits than its factorization.

122011020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15200 (or 15198 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 122011020020 its reverse (20020110221), we get a palindrome (142031130241).

The spelling of 122011020020 in words is "one hundred twenty-two billion, eleven million, twenty thousand, twenty".