10122221011 has 6 divisors (see below), whose sum is σ = 11774828580. Its totient is φ = 8676189396.

The previous prime is 10122221009. The next prime is 10122221033. The reversal of 10122221011 is 11012222101.

It is not a de Polignac number, because 10122221011 - 2¹ = 10122221009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10122220982 and 10122221000.

It is not an unprimeable number, because it can be changed into a prime (10122221051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103287921 + ... + 103288018.

It is an arithmetic number, because the mean of its divisors is an integer number (1962471430).

Almost surely, 2^10122221011 is an apocalyptic number.

10122221011 is a deficient number, since it is larger than the sum of its proper divisors (1652607569).

10122221011 is an equidigital number, since it uses as much as digits as its factorization.

10122221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206575953 (or 206575946 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10122221011 its reverse (11012222101), we get a palindrome (21134443112).

The spelling of 10122221011 in words is "ten billion, one hundred twenty-two million, two hundred twenty-one thousand, eleven".