10221011 has 4 divisors (see below), whose sum is σ = 10265112. Its totient is φ = 10176912.

The previous prime is 10221007. The next prime is 10221037. The reversal of 10221011 is 11012201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11012201 = 389 ⋅28309.

It is a cyclic number.

It is not a de Polignac number, because 10221011 - 2² = 10221007 is a prime.

It is a super-3 number, since 3×10221011³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10221011.

It is not an unprimeable number, because it can be changed into a prime (10221091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21701 + ... + 22166.

It is an arithmetic number, because the mean of its divisors is an integer number (2566278).

Almost surely, 2^10221011 is an apocalyptic number.

10221011 is a deficient number, since it is larger than the sum of its proper divisors (44101).

10221011 is an equidigital number, since it uses as much as digits as its factorization.

10221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44100.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 10221011 is about 3197.0315919615. The cubic root of 10221011 is about 217.0190969057.

Adding to 10221011 its reverse (11012201), we get a palindrome (21233212).

The spelling of 10221011 in words is "ten million, two hundred twenty-one thousand, eleven".