1000121101222 has 4 divisors (see below), whose sum is σ = 1500181651836. Its totient is φ = 500060550610.

The previous prime is 1000121101219. The next prime is 1000121101253. The reversal of 1000121101222 is 2221011210001.

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

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, 250030275304 + ... + 250030275307.

It is an arithmetic number, because the mean of its divisors is an integer number (375045412959).

Almost surely, 2^{1000121101222} is an apocalyptic number.

1000121101222 is a deficient number, since it is larger than the sum of its proper divisors (500060550614).

1000121101222 is an equidigital number, since it uses as much as digits as its factorization.

1000121101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500060550613.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1000121101222 its reverse (2221011210001), we get a palindrome (3221132311223).

The spelling of 1000121101222 in words is "one trillion, one hundred twenty-one million, one hundred one thousand, two hundred twenty-two".