122011222220 has 24 divisors (see below), whose sum is σ = 256233021408. Its totient is φ = 48802688000.

The previous prime is 122011222171. The next prime is 122011222243. The reversal of 122011222220 is 22222110221.

It is a happy number.

It is an unprimeable number.

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, 533420 + ... + 727020.

It is an arithmetic number, because the mean of its divisors is an integer number (10676375892).

Almost surely, 2^122011222220 is an apocalyptic number.

122011222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122011222220 is an abundant number, since it is smaller than the sum of its proper divisors (134221799188).

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

122011222220 is a wasteful number, since it uses less digits than its factorization.

122011222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225121 (or 225119 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122011222220 its reverse (22222110221), we get a palindrome (144233332441).

The spelling of 122011222220 in words is "one hundred twenty-two billion, eleven million, two hundred twenty-two thousand, two hundred twenty".