1001202221222 has 16 divisors (see below), whose sum is σ = 1716372119040. Its totient is φ = 429080302728.

The previous prime is 1001202221213. The next prime is 1001202221249. The reversal of 1001202221222 is 2221222021001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001202221222.

It is a congruent 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, 519029 + ... + 1507247.

It is an arithmetic number, because the mean of its divisors is an integer number (107273257440).

Almost surely, 2^{1001202221222} is an apocalyptic number.

1001202221222 is a deficient number, since it is larger than the sum of its proper divisors (715169897818).

1001202221222 is an equidigital number, since it uses as much as digits as its factorization.

1001202221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060595.

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

Adding to 1001202221222 its reverse (2221222021001), we get a palindrome (3222424242223).

The spelling of 1001202221222 in words is "one trillion, one billion, two hundred two million, two hundred twenty-one thousand, two hundred twenty-two".