1000021000211 has 8 divisors (see below), whose sum is σ = 1003093416384. Its totient is φ = 996948893160.

The previous prime is 1000021000207. The next prime is 1000021000219. The reversal of 1000021000211 is 1120001200001.

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

It is a cyclic number.

It is not a de Polignac number, because 1000021000211 - 2² = 1000021000207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000021000219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7556336 + ... + 7687538.

It is an arithmetic number, because the mean of its divisors is an integer number (125386677048).

Almost surely, 2^{1000021000211} is an apocalyptic number.

1000021000211 is a deficient number, since it is larger than the sum of its proper divisors (3072416173).

1000021000211 is a wasteful number, since it uses less digits than its factorization.

1000021000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154561.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1000021000211 its reverse (1120001200001), we get a palindrome (2120022200212).

The spelling of 1000021000211 in words is "one trillion, twenty-one million, two hundred eleven", and thus it is an aban number.