21110011012 has 12 divisors (see below), whose sum is σ = 36965926480. Its totient is φ = 10548317736.

The previous prime is 21110010983. The next prime is 21110011049. The reversal of 21110011012 is 21011001112.

It is a super-2 number, since 2×21110011012² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21110011012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1664838 + ... + 1677469.

Almost surely, 2^21110011012 is an apocalyptic number.

It is an amenable number.

21110011012 is a deficient number, since it is larger than the sum of its proper divisors (15855915468).

21110011012 is a wasteful number, since it uses less digits than its factorization.

21110011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343890 (or 3343888 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 21110011012 its reverse (21011001112), we get a palindrome (42121012124).

The spelling of 21110011012 in words is "twenty-one billion, one hundred ten million, eleven thousand, twelve".