211122101133 has 28 divisors (see below), whose sum is σ = 319672503708. Its totient is φ = 139354473600.

The previous prime is 211122101107. The next prime is 211122101173. The reversal of 211122101133 is 331101221112.

It can be written as a sum of positive squares in 2 ways, for example, as 201028483044 + 10093618089 = 448362^2 + 100467^2 .

It is not a de Polignac number, because 211122101133 - 2⁹ = 211122100621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122101173) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1360060 + ... + 1507317.

Almost surely, 2^211122101133 is an apocalyptic number.

It is an amenable number.

211122101133 is a deficient number, since it is larger than the sum of its proper divisors (108550402575).

211122101133 is an equidigital number, since it uses as much as digits as its factorization.

211122101133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867496 (or 2867481 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 211122101133 its reverse (331101221112), we get a palindrome (542223322245).

The spelling of 211122101133 in words is "two hundred eleven billion, one hundred twenty-two million, one hundred one thousand, one hundred thirty-three".