122220222222 has 32 divisors (see below), whose sum is σ = 279773217792. Its totient is φ = 34868474784.

The previous prime is 122220222217. The next prime is 122220222233. The reversal of 122220222222 is 222222022221.

It is a Harshad number since it is a multiple of its sum of digits (21).

122220222222 is a modest number, since divided by 222222 gives 122220 as remainder.

It is a congruent number.

It is an unprimeable number.

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, 2120758 + ... + 2177625.

It is an arithmetic number, because the mean of its divisors is an integer number (8742913056).

Almost surely, 2^122220222222 is an apocalyptic number.

122220222222 is an abundant number, since it is smaller than the sum of its proper divisors (157552995570).

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

122220222222 is a wasteful number, since it uses less digits than its factorization.

122220222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4299072.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 122220222222 its reverse (222222022221), we get a palindrome (344442244443).

The spelling of 122220222222 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty-two".