2122220001220 has 96 divisors (see below), whose sum is σ = 5198771362176. Its totient is φ = 719129856000.

The previous prime is 2122220001199. The next prime is 2122220001281. The reversal of 2122220001220 is 221000222212.

It is a junction number, because it is equal to n+sod(n) for n = 2122220001194 and 2122220001203.

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 31 ways as a sum of consecutive naturals, for example, 2431362 + ... + 3186841.

It is an arithmetic number, because the mean of its divisors is an integer number (54153868356).

Almost surely, 2^{2122220001220} is an apocalyptic number.

2122220001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122220001220 is an abundant number, since it is smaller than the sum of its proper divisors (3076551360956).

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

2122220001220 is a wasteful number, since it uses less digits than its factorization.

2122220001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618341 (or 5618339 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2122220001220 its reverse (221000222212), we get a palindrome (2343220223432).

The spelling of 2122220001220 in words is "two trillion, one hundred twenty-two billion, two hundred twenty million, one thousand, two hundred twenty".