1000212121012 has 24 divisors (see below), whose sum is σ = 1888120672256. Its totient is φ = 460875827808.

The previous prime is 1000212120977. The next prime is 1000212121033. The reversal of 1000212121012 is 2101212120001.

It is a super-3 number, since 3×1000212121012³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1000212120983 and 1000212121001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15812628 + ... + 15875755.

Almost surely, 2^{1000212121012} is an apocalyptic number.

It is an amenable number.

1000212121012 is a deficient number, since it is larger than the sum of its proper divisors (887908551244).

1000212121012 is a wasteful number, since it uses less digits than its factorization.

1000212121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31689007 (or 31689005 counting only the distinct ones).

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

Adding to 1000212121012 its reverse (2101212120001), we get a palindrome (3101424241013).

The spelling of 1000212121012 in words is "one trillion, two hundred twelve million, one hundred twenty-one thousand, twelve".