2122202122220 has 48 divisors (see below), whose sum is σ = 4472173278720. Its totient is φ = 845922135744.

The previous prime is 2122202122207. The next prime is 2122202122273. The reversal of 2122202122220 is 222212022212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2122202122192 and 2122202122201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11477261 + ... + 11660699.

It is an arithmetic number, because the mean of its divisors is an integer number (93170276640).

Almost surely, 2^{2122202122220} is an apocalyptic number.

2122202122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122202122220 is an abundant number, since it is smaller than the sum of its proper divisors (2349971156500).

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

2122202122220 is a wasteful number, since it uses less digits than its factorization.

2122202122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185462 (or 185460 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2122202122220 its reverse (222212022212), we get a palindrome (2344414144432).

It can be divided in two parts, 2122202 and 122220, that added together give a palindrome (2244422).

The spelling of 2122202122220 in words is "two trillion, one hundred twenty-two billion, two hundred two million, one hundred twenty-two thousand, two hundred twenty".