1000212122122 has 8 divisors (see below), whose sum is σ = 1501404587172. Its totient is φ = 499743926400.

The previous prime is 1000212122101. The next prime is 1000212122159. The reversal of 1000212122122 is 2212212120001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 921889942801 + 78322179321 = 960151^2 + 279861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1000212122096 and 1000212122105.

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 3 ways as a sum of consecutive naturals, for example, 181063879 + ... + 181069402.

Almost surely, 2^{1000212122122} is an apocalyptic number.

1000212122122 is a deficient number, since it is larger than the sum of its proper divisors (501192465050).

1000212122122 is a wasteful number, since it uses less digits than its factorization.

1000212122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362134664.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1000212122122 its reverse (2212212120001), we get a palindrome (3212424242123).

The spelling of 1000212122122 in words is "one trillion, two hundred twelve million, one hundred twenty-two thousand, one hundred twenty-two".