1000222121011 has 4 divisors (see below), whose sum is σ = 1016619205024. Its totient is φ = 983825037000.

The previous prime is 1000222120999. The next prime is 1000222121021. The reversal of 1000222121011 is 1101212220001.

1000222121011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1000222121011 - 2⁷ = 1000222120883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000222120982 and 1000222121000.

It is not an unprimeable number, because it can be changed into a prime (1000222121021) 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, 8198541915 + ... + 8198542036.

It is an arithmetic number, because the mean of its divisors is an integer number (254154801256).

Almost surely, 2^{1000222121011} is an apocalyptic number.

1000222121011 is a deficient number, since it is larger than the sum of its proper divisors (16397084013).

1000222121011 is an equidigital number, since it uses as much as digits as its factorization.

1000222121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16397084012.

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

Adding to 1000222121011 its reverse (1101212220001), we get a palindrome (2101434341012).

The spelling of 1000222121011 in words is "one trillion, two hundred twenty-two million, one hundred twenty-one thousand, eleven".