1000121022212 has 48 divisors (see below), whose sum is σ = 1924431519360. Its totient is φ = 451981804032.

The previous prime is 1000121022209. The next prime is 1000121022281. The reversal of 1000121022212 is 2122201210001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277637 + ... + 1441292.

It is an arithmetic number, because the mean of its divisors is an integer number (40092323320).

Almost surely, 2^{1000121022212} is an apocalyptic number.

It is an amenable number.

1000121022212 is a deficient number, since it is larger than the sum of its proper divisors (924310497148).

1000121022212 is a wasteful number, since it uses less digits than its factorization.

1000121022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719180 (or 1719178 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1000121022212 its reverse (2122201210001), we get a palindrome (3122322232213).

The spelling of 1000121022212 in words is "one trillion, one hundred twenty-one million, twenty-two thousand, two hundred twelve".