21422316036 has 24 divisors (see below), whose sum is σ = 54529532064. Its totient is φ = 6491610880.

The previous prime is 21422315983. The next prime is 21422316067. The reversal of 21422316036 is 63061322412.

It is a junction number, because it is equal to n+sod(n) for n = 21422315994 and 21422316012.

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, 81145005 + ... + 81145268.

It is an arithmetic number, because the mean of its divisors is an integer number (2272063836).

Almost surely, 2^21422316036 is an apocalyptic number.

It is an amenable number.

21422316036 is an abundant number, since it is smaller than the sum of its proper divisors (33107216028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21422316036 is a wasteful number, since it uses less digits than its factorization.

21422316036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162290291 (or 162290289 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 21422316036 its reverse (63061322412), we get a palindrome (84483638448).

The spelling of 21422316036 in words is "twenty-one billion, four hundred twenty-two million, three hundred sixteen thousand, thirty-six".