201222210011 has 4 divisors (see below), whose sum is σ = 201223107192. Its totient is φ = 201221312832.

The previous prime is 201222210001. The next prime is 201222210029. The reversal of 201222210011 is 110012222102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 110012222102 = 2 ⋅55006111051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201222210011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201222210001) 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, 219371 + ... + 671243.

It is an arithmetic number, because the mean of its divisors is an integer number (50305776798).

Almost surely, 2^201222210011 is an apocalyptic number.

201222210011 is a deficient number, since it is larger than the sum of its proper divisors (897181).

201222210011 is an equidigital number, since it uses as much as digits as its factorization.

201222210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897180.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201222210011 its reverse (110012222102), we get a palindrome (311234432113).

The spelling of 201222210011 in words is "two hundred one billion, two hundred twenty-two million, two hundred ten thousand, eleven".