21514051532210 has 32 divisors (see below), whose sum is σ = 39110068998000. Its totient is φ = 8520120697600.

The previous prime is 21514051532209. The next prime is 21514051532269. The reversal of 21514051532210 is 1223515041512.

It can be written as a sum of positive squares in 8 ways, for example, as 21513205362289 + 846169921 = 4638233^2 + 29089^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29974616 + ... + 30683964.

Almost surely, 2^{21514051532210} is an apocalyptic number.

21514051532210 is a deficient number, since it is larger than the sum of its proper divisors (17596017465790).

21514051532210 is a wasteful number, since it uses less digits than its factorization.

21514051532210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739486.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 21514051532210 its reverse (1223515041512), we get a palindrome (22737566573722).

The spelling of 21514051532210 in words is "twenty-one trillion, five hundred fourteen billion, fifty-one million, five hundred thirty-two thousand, two hundred ten".