211122345135 has 32 divisors (see below), whose sum is σ = 363882774528. Its totient is φ = 103907802240.

The previous prime is 211122345127. The next prime is 211122345139. The reversal of 211122345135 is 531543221112.

It is a happy number.

It is not a de Polignac number, because 211122345135 - 2³ = 211122345127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122345139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 547600 + ... + 849770.

It is an arithmetic number, because the mean of its divisors is an integer number (11371336704).

Almost surely, 2^211122345135 is an apocalyptic number.

211122345135 is a deficient number, since it is larger than the sum of its proper divisors (152760429393).

211122345135 is a wasteful number, since it uses less digits than its factorization.

211122345135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305775.

The product of its digits is 7200, while the sum is 30.

Adding to 211122345135 its reverse (531543221112), we get a palindrome (742665566247).

The spelling of 211122345135 in words is "two hundred eleven billion, one hundred twenty-two million, three hundred forty-five thousand, one hundred thirty-five".