21560022070 has 8 divisors (see below), whose sum is σ = 38808039744. Its totient is φ = 8624008824.

The previous prime is 21560022059. The next prime is 21560022079. The reversal of 21560022070 is 7022006512.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21560022079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078001094 + ... + 1078001113.

It is an arithmetic number, because the mean of its divisors is an integer number (4851004968).

Almost surely, 2^21560022070 is an apocalyptic number.

21560022070 is a deficient number, since it is larger than the sum of its proper divisors (17248017674).

21560022070 is a wasteful number, since it uses less digits than its factorization.

21560022070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156002214.

The product of its (nonzero) digits is 1680, while the sum is 25.

Adding to 21560022070 its reverse (7022006512), we get a palindrome (28582028582).

The spelling of 21560022070 in words is "twenty-one billion, five hundred sixty million, twenty-two thousand, seventy".