122021222220 has 36 divisors (see below), whose sum is σ = 370131041280. Its totient is φ = 32538992544.

The previous prime is 122021222189. The next prime is 122021222221. The reversal of 122021222220 is 22222120221.

122021222220 is a `hidden beast` number, since 1 + 220 + 2 + 1 + 222 + 220 = 666.

122021222220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122021222193 and 122021222202.

It is not an unprimeable number, because it can be changed into a prime (122021222221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338947660 + ... + 338948019.

Almost surely, 2^122021222220 is an apocalyptic number.

122021222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122021222220 is an abundant number, since it is smaller than the sum of its proper divisors (248109819060).

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

122021222220 is a wasteful number, since it uses less digits than its factorization.

122021222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677895694 (or 677895689 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122021222220 its reverse (22222120221), we get a palindrome (144243342441).

The spelling of 122021222220 in words is "one hundred twenty-two billion, twenty-one million, two hundred twenty-two thousand, two hundred twenty".