1001222221022 has 32 divisors (see below), whose sum is σ = 1659456647424. Its totient is φ = 450639446400.

The previous prime is 1001222221019. The next prime is 1001222221063. The reversal of 1001222221022 is 2201222221001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10345397 + ... + 10441727.

It is an arithmetic number, because the mean of its divisors is an integer number (51858020232).

Almost surely, 2^{1001222221022} is an apocalyptic number.

1001222221022 is a deficient number, since it is larger than the sum of its proper divisors (658234426402).

1001222221022 is a wasteful number, since it uses less digits than its factorization.

1001222221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109664.

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

Adding to 1001222221022 its reverse (2201222221001), we get a palindrome (3202444442023).

The spelling of 1001222221022 in words is "one trillion, one billion, two hundred twenty-two million, two hundred twenty-one thousand, twenty-two".