2221120220122 has 16 divisors (see below), whose sum is σ = 3495109046400. Its totient is φ = 1057162608880.

The previous prime is 2221120220117. The next prime is 2221120220147. The reversal of 2221120220122 is 2210220211222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221120220122.

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 7 ways as a sum of consecutive naturals, for example, 269680222 + ... + 269688457.

It is an arithmetic number, because the mean of its divisors is an integer number (218444315400).

Almost surely, 2^{2221120220122} is an apocalyptic number.

2221120220122 is a deficient number, since it is larger than the sum of its proper divisors (1273988826278).

2221120220122 is a wasteful number, since it uses less digits than its factorization.

2221120220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539368781.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2221120220122 its reverse (2210220211222), we get a palindrome (4431340431344).

The spelling of 2221120220122 in words is "two trillion, two hundred twenty-one billion, one hundred twenty million, two hundred twenty thousand, one hundred twenty-two".