211102113122 has 4 divisors (see below), whose sum is σ = 316653169686. Its totient is φ = 105551056560.

The previous prime is 211102113067. The next prime is 211102113133. The reversal of 211102113122 is 221311201112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 210580949881 + 521163241 = 458891^2 + 22829^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 211102113122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52775528279 + ... + 52775528282.

Almost surely, 2^211102113122 is an apocalyptic number.

211102113122 is a deficient number, since it is larger than the sum of its proper divisors (105551056564).

211102113122 is a wasteful number, since it uses less digits than its factorization.

211102113122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105551056563.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211102113122 its reverse (221311201112), we get a palindrome (432413314234).

The spelling of 211102113122 in words is "two hundred eleven billion, one hundred two million, one hundred thirteen thousand, one hundred twenty-two".