21820422310 has 8 divisors (see below), whose sum is σ = 39276760176. Its totient is φ = 8728168920.

The previous prime is 21820422287. The next prime is 21820422311. The reversal of 21820422310 is 1322402812.

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

It is a super-2 number, since 2×21820422310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21820422311) 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, 1091021106 + ... + 1091021125.

It is an arithmetic number, because the mean of its divisors is an integer number (4909595022).

Almost surely, 2^21820422310 is an apocalyptic number.

21820422310 is a deficient number, since it is larger than the sum of its proper divisors (17456337866).

21820422310 is a wasteful number, since it uses less digits than its factorization.

21820422310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182042238.

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 21820422310 in words is "twenty-one billion, eight hundred twenty million, four hundred twenty-two thousand, three hundred ten".