122022222020 has 24 divisors (see below), whose sum is σ = 256254595800. Its totient is φ = 48807378432.

The previous prime is 122022222019. The next prime is 122022222029. The reversal of 122022222020 is 20222220221.

It can be written as a sum of positive squares in 4 ways, for example, as 35313174724 + 86709047296 = 187918^2 + 294464^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122022222020.

It is not an unprimeable number, because it can be changed into a prime (122022222029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754076 + ... + 901484.

It is an arithmetic number, because the mean of its divisors is an integer number (10677274825).

Almost surely, 2^122022222020 is an apocalyptic number.

122022222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122022222020 is an abundant number, since it is smaller than the sum of its proper divisors (134232373780).

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

122022222020 is a wasteful number, since it uses less digits than its factorization.

122022222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188807 (or 188805 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 122022222020 its reverse (20222220221), we get a palindrome (142244442241).

The spelling of 122022222020 in words is "one hundred twenty-two billion, twenty-two million, two hundred twenty-two thousand, twenty".