21110212010 has 32 divisors (see below), whose sum is σ = 40010241600. Its totient is φ = 7997270400.

The previous prime is 21110212003. The next prime is 21110212099. The reversal of 21110212010 is 1021201112.

It is a super-2 number, since 2×21110212010² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21110211982 and 21110212000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703310 + ... + 732710.

It is an arithmetic number, because the mean of its divisors is an integer number (1250320050).

Almost surely, 2^21110212010 is an apocalyptic number.

21110212010 is a deficient number, since it is larger than the sum of its proper divisors (18900029590).

21110212010 is a wasteful number, since it uses less digits than its factorization.

21110212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33206.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21110212010 its reverse (1021201112), we get a palindrome (22131413122).

The spelling of 21110212010 in words is "twenty-one billion, one hundred ten million, two hundred twelve thousand, ten".