1002122111222 has 4 divisors (see below), whose sum is σ = 1503183166836. Its totient is φ = 501061055610.

The previous prime is 1002122111213. The next prime is 1002122111257. The reversal of 1002122111222 is 2221112212001.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1002122111222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250530527804 + ... + 250530527807.

It is an arithmetic number, because the mean of its divisors is an integer number (375795791709).

Almost surely, 2^{1002122111222} is an apocalyptic number.

1002122111222 is a deficient number, since it is larger than the sum of its proper divisors (501061055614).

1002122111222 is an equidigital number, since it uses as much as digits as its factorization.

1002122111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501061055613.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1002122111222 its reverse (2221112212001), we get a palindrome (3223234323223).

The spelling of 1002122111222 in words is "one trillion, two billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twenty-two".