10211221011 has 8 divisors (see below), whose sum is σ = 13947033744. Its totient is φ = 6641444480.

The previous prime is 10211220953. The next prime is 10211221049. The reversal of 10211221011 is 11012211201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10211221011 - 2¹³ = 10211212819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10211222011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41508906 + ... + 41509151.

It is an arithmetic number, because the mean of its divisors is an integer number (1743379218).

Almost surely, 2^10211221011 is an apocalyptic number.

10211221011 is a deficient number, since it is larger than the sum of its proper divisors (3735812733).

10211221011 is an equidigital number, since it uses as much as digits as its factorization.

10211221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83018101.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10211221011 its reverse (11012211201), we get a palindrome (21223432212).

The spelling of 10211221011 in words is "ten billion, two hundred eleven million, two hundred twenty-one thousand, eleven".