10221022121011 has 4 divisors (see below), whose sum is σ = 11007254591872. Its totient is φ = 9434789650152.

The previous prime is 10221022120889. The next prime is 10221022121017. The reversal of 10221022121011 is 11012122012201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10221022121011 - 2¹⁷ = 10221021989939 is a prime.

It is a super-2 number, since 2×10221022121011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221022121017) 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 3 ways as a sum of consecutive naturals, for example, 393116235411 + ... + 393116235436.

It is an arithmetic number, because the mean of its divisors is an integer number (2751813647968).

Almost surely, 2^{10221022121011} is an apocalyptic number.

10221022121011 is a deficient number, since it is larger than the sum of its proper divisors (786232470861).

10221022121011 is an equidigital number, since it uses as much as digits as its factorization.

10221022121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786232470860.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10221022121011 its reverse (11012122012201), we get a palindrome (21233144133212).

The spelling of 10221022121011 in words is "ten trillion, two hundred twenty-one billion, twenty-two million, one hundred twenty-one thousand, eleven".