21101330210 has 16 divisors (see below), whose sum is σ = 37992943296. Its totient is φ = 8438187888.

The previous prime is 21101330203. The next prime is 21101330219. The reversal of 21101330210 is 1203310112.

It is a super-2 number, since 2×21101330210² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21101330219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254984 + ... + 327443.

It is an arithmetic number, because the mean of its divisors is an integer number (2374558956).

Almost surely, 2^21101330210 is an apocalyptic number.

21101330210 is a deficient number, since it is larger than the sum of its proper divisors (16891613086).

21101330210 is a wasteful number, since it uses less digits than its factorization.

21101330210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586057.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21101330210 its reverse (1203310112), we get a palindrome (22304640322).

The spelling of 21101330210 in words is "twenty-one billion, one hundred one million, three hundred thirty thousand, two hundred ten".