1000021211012 has 24 divisors (see below), whose sum is σ = 1755697426560. Its totient is φ = 498394761120.

The previous prime is 1000021211003. The next prime is 1000021211041. The reversal of 1000021211012 is 2101121200001.

It is a junction number, because it is equal to n+sod(n) for n = 1000021210984 and 1000021211002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2733062 + ... + 3077282.

It is an arithmetic number, because the mean of its divisors is an integer number (73154059440).

Almost surely, 2^{1000021211012} is an apocalyptic number.

It is an amenable number.

1000021211012 is a deficient number, since it is larger than the sum of its proper divisors (755676215548).

1000021211012 is a wasteful number, since it uses less digits than its factorization.

1000021211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346571 (or 346569 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1000021211012 its reverse (2101121200001), we get a palindrome (3101142411013).

The spelling of 1000021211012 in words is "one trillion, twenty-one million, two hundred eleven thousand, twelve".