221212002011011 has 32 divisors (see below), whose sum is σ = 243027503566848. Its totient is φ = 199683397883040.

The previous prime is 221212002010997. The next prime is 221212002011017. The reversal of 221212002011011 is 110110200212122.

221212002011011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 221212002011011 - 2¹⁵ = 221212001978243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221212002011017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9434542890 + ... + 9434566336.

It is an arithmetic number, because the mean of its divisors is an integer number (7594609486464).

Almost surely, 2^{221212002011011} is an apocalyptic number.

221212002011011 is a deficient number, since it is larger than the sum of its proper divisors (21815501555837).

221212002011011 is a wasteful number, since it uses less digits than its factorization.

221212002011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28911.

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

Adding to 221212002011011 its reverse (110110200212122), we get a palindrome (331322202223133).

The spelling of 221212002011011 in words is "two hundred twenty-one trillion, two hundred twelve billion, two million, eleven thousand, eleven".