10206243215021 has 32 divisors (see below), whose sum is σ = 11791712072448. Its totient is φ = 8653207449600.

The previous prime is 10206243215011. The next prime is 10206243215033. The reversal of 10206243215021 is 12051234260201.

It is not a de Polignac number, because 10206243215021 - 2¹⁴ = 10206243198637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10206243215011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450575546 + ... + 450598196.

It is an arithmetic number, because the mean of its divisors is an integer number (368491002264).

Almost surely, 2^{10206243215021} is an apocalyptic number.

It is an amenable number.

10206243215021 is a deficient number, since it is larger than the sum of its proper divisors (1585468857427).

10206243215021 is a wasteful number, since it uses less digits than its factorization.

10206243215021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24741.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 10206243215021 its reverse (12051234260201), we get a palindrome (22257477475222).

The spelling of 10206243215021 in words is "ten trillion, two hundred six billion, two hundred forty-three million, two hundred fifteen thousand, twenty-one".