10921012 has 12 divisors (see below), whose sum is σ = 19327140. Its totient is φ = 5398976.

The previous prime is 10920983. The next prime is 10921033. The reversal of 10921012 is 21012901.

It can be written as a sum of positive squares in 2 ways, for example, as 5035536 + 5885476 = 2244^2 + 2426^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14983 + ... + 15694.

It is an arithmetic number, because the mean of its divisors is an integer number (1610595).

Almost surely, 2^10921012 is an apocalyptic number.

It is an amenable number.

10921012 is a deficient number, since it is larger than the sum of its proper divisors (8406128).

10921012 is a wasteful number, since it uses less digits than its factorization.

10921012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30770 (or 30768 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 10921012 is about 3304.6954473900. The cubic root of 10921012 is about 221.8644033027.

Adding to 10921012 its reverse (21012901), we get a palindrome (31933913).

The spelling of 10921012 in words is "ten million, nine hundred twenty-one thousand, twelve".