10212110100021 has 8 divisors (see below), whose sum is σ = 13675605957280. Its totient is φ = 6778343821392.

The previous prime is 10212110099987. The next prime is 10212110100047. The reversal of 10212110100021 is 12000101121201.

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

It is not a de Polignac number, because 10212110100021 - 2⁴² = 5814063588917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212110100061) 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, 7432393855 + ... + 7432395228.

It is an arithmetic number, because the mean of its divisors is an integer number (1709450744660).

Almost surely, 2^{10212110100021} is an apocalyptic number.

It is an amenable number.

10212110100021 is a deficient number, since it is larger than the sum of its proper divisors (3463495857259).

10212110100021 is a wasteful number, since it uses less digits than its factorization.

10212110100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14864789315.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10212110100021 its reverse (12000101121201), we get a palindrome (22212211221222).

The spelling of 10212110100021 in words is "ten trillion, two hundred twelve billion, one hundred ten million, one hundred thousand, twenty-one".