211133222101 has 8 divisors (see below), whose sum is σ = 213359709464. Its totient is φ = 208917895680.

The previous prime is 211133222059. The next prime is 211133222141. The reversal of 211133222101 is 101222331112.

It can be written as a sum of positive squares in 4 ways, for example, as 23708300625 + 187424921476 = 153975^2 + 432926^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211133222101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211133222141) 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, 2752200 + ... + 2827873.

It is an arithmetic number, because the mean of its divisors is an integer number (26669963683).

Almost surely, 2^211133222101 is an apocalyptic number.

It is an amenable number.

211133222101 is a deficient number, since it is larger than the sum of its proper divisors (2226487363).

211133222101 is a wasteful number, since it uses less digits than its factorization.

211133222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5580471.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 211133222101 its reverse (101222331112), we get a palindrome (312355553213).

The spelling of 211133222101 in words is "two hundred eleven billion, one hundred thirty-three million, two hundred twenty-two thousand, one hundred one".