201101222011 has 8 divisors (see below), whose sum is σ = 203533793280. Its totient is φ = 198678893928.

The previous prime is 201101221969. The next prime is 201101222029. The reversal of 201101222011 is 110222101102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201101222011 - 2¹⁹ = 201100697723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201101221982 and 201101222000.

It is not an unprimeable number, because it can be changed into a prime (201101222111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2521291 + ... + 2599828.

It is an arithmetic number, because the mean of its divisors is an integer number (25441724160).

Almost surely, 2^201101222011 is an apocalyptic number.

201101222011 is a deficient number, since it is larger than the sum of its proper divisors (2432571269).

201101222011 is a wasteful number, since it uses less digits than its factorization.

201101222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121593.

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

Adding to 201101222011 its reverse (110222101102), we get a palindrome (311323323113).

The spelling of 201101222011 in words is "two hundred one billion, one hundred one million, two hundred twenty-two thousand, eleven".