10221222121011 has 18 divisors (see below), whose sum is σ = 16228184618100. Its totient is φ = 6194680072680.

The previous prime is 10221222121007. The next prime is 10221222121021. The reversal of 10221222121011 is 11012122212201.

10221222121011 is a `hidden beast` number, since 1 + 0 + 221 + 2 + 221 + 210 + 11 = 666.

It is not a de Polignac number, because 10221222121011 - 2² = 10221222121007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10221222121021) 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 17 ways as a sum of consecutive naturals, for example, 4692938361 + ... + 4692940538.

Almost surely, 2^{10221222121011} is an apocalyptic number.

10221222121011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10221222121011 is a deficient number, since it is larger than the sum of its proper divisors (6006962497089).

10221222121011 is a wasteful number, since it uses less digits than its factorization.

10221222121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9385878927 (or 9385878913 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10221222121011 its reverse (11012122212201), we get a palindrome (21233344333212).

The spelling of 10221222121011 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, eleven".