21110320010 has 96 divisors (see below), whose sum is σ = 43692711552. Its totient is φ = 7298565120.

The previous prime is 21110320003. The next prime is 21110320013. The reversal of 21110320010 is 1002301112.

It is a super-2 number, since 2×21110320010² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21110319973 and 21110320000.

It is not an unprimeable number, because it can be changed into a prime (21110320013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7925939 + ... + 7928601.

It is an arithmetic number, because the mean of its divisors is an integer number (455132412).

Almost surely, 2^21110320010 is an apocalyptic number.

21110320010 is an abundant number, since it is smaller than the sum of its proper divisors (22582391542).

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

21110320010 is a wasteful number, since it uses less digits than its factorization.

21110320010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928 (or 2911 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21110320010 its reverse (1002301112), we get a palindrome (22112621122).

The spelling of 21110320010 in words is "twenty-one billion, one hundred ten million, three hundred twenty thousand, ten".