21234202250486 has 16 divisors (see below), whose sum is σ = 31931587800000. Its totient is φ = 10590346424328.

The previous prime is 21234202250467. The next prime is 21234202250497. The reversal of 21234202250486 is 68405220243212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4594661 + ... + 7973663.

It is an arithmetic number, because the mean of its divisors is an integer number (1995724237500).

Almost surely, 2^{21234202250486} is an apocalyptic number.

21234202250486 is a deficient number, since it is larger than the sum of its proper divisors (10697385549514).

21234202250486 is a wasteful number, since it uses less digits than its factorization.

21234202250486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386923.

The product of its (nonzero) digits is 368640, while the sum is 41.

Adding to 21234202250486 its reverse (68405220243212), we get a palindrome (89639422493698).

The spelling of 21234202250486 in words is "twenty-one trillion, two hundred thirty-four billion, two hundred two million, two hundred fifty thousand, four hundred eighty-six".