21001110010 has 16 divisors (see below), whose sum is σ = 37804859136. Its totient is φ = 8399808208.

The previous prime is 21001109999. The next prime is 21001110103. The reversal of 21001110010 is 1001110012.

It is a junction number, because it is equal to n+sod(n) for n = 21001109975 and 21001110002.

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, 73227 + ... + 217633.

It is an arithmetic number, because the mean of its divisors is an integer number (2362803696).

Almost surely, 2^21001110010 is an apocalyptic number.

21001110010 is a deficient number, since it is larger than the sum of its proper divisors (16803749126).

21001110010 is a wasteful number, since it uses less digits than its factorization.

21001110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158957.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 21001110010 its reverse (1001110012), we get a palindrome (22002220022).

The spelling of 21001110010 in words is "twenty-one billion, one million, one hundred ten thousand, ten".