122012222220 has 144 divisors (see below), whose sum is σ = 432812540160. Its totient is φ = 27239925888.

The previous prime is 122012222209. The next prime is 122012222237. The reversal of 122012222220 is 22222210221.

122012222220 is a `hidden beast` number, since 1 + 220 + 1 + 2 + 222 + 220 = 666.

122012222220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 122012222193 and 122012222202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1071810 + ... + 1180169.

It is an arithmetic number, because the mean of its divisors is an integer number (3005642640).

Almost surely, 2^122012222220 is an apocalyptic number.

122012222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122012222220 is an abundant number, since it is smaller than the sum of its proper divisors (310800317940).

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

122012222220 is a wasteful number, since it uses less digits than its factorization.

122012222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252044 (or 2252039 counting only the distinct ones).

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

Adding to 122012222220 its reverse (22222210221), we get a palindrome (144234432441).

The spelling of 122012222220 in words is "one hundred twenty-two billion, twelve million, two hundred twenty-two thousand, two hundred twenty".