1000212010021 has 16 divisors (see below), whose sum is σ = 1170427595904. Its totient is φ = 837054941184.

The previous prime is 1000212010009. The next prime is 1000212010043. The reversal of 1000212010021 is 1200102120001.

It is not a de Polignac number, because 1000212010021 - 2⁵ = 1000212009989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000212010051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9383500 + ... + 9489493.

It is an arithmetic number, because the mean of its divisors is an integer number (73151724744).

Almost surely, 2^{1000212010021} is an apocalyptic number.

It is an amenable number.

1000212010021 is a deficient number, since it is larger than the sum of its proper divisors (170215585883).

1000212010021 is a wasteful number, since it uses less digits than its factorization.

1000212010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18873180.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1000212010021 its reverse (1200102120001), we get a palindrome (2200314130022).

The spelling of 1000212010021 in words is "one trillion, two hundred twelve million, ten thousand, twenty-one".