21213560223034 has 16 divisors (see below), whose sum is σ = 32582757490272. Its totient is φ = 10352980593648.

The previous prime is 21213560223013. The next prime is 21213560223133. The reversal of 21213560223034 is 43032206531212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84757804 + ... + 85007719.

It is an arithmetic number, because the mean of its divisors is an integer number (2036422343142).

Almost surely, 2^{21213560223034} is an apocalyptic number.

21213560223034 is a deficient number, since it is larger than the sum of its proper divisors (11369197267238).

21213560223034 is a wasteful number, since it uses less digits than its factorization.

21213560223034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169767021.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 21213560223034 its reverse (43032206531212), we get a palindrome (64245766754246).

The spelling of 21213560223034 in words is "twenty-one trillion, two hundred thirteen billion, five hundred sixty million, two hundred twenty-three thousand, thirty-four".