211105101222 has 48 divisors (see below), whose sum is σ = 458940772368. Its totient is φ = 70130617920.

The previous prime is 211105101211. The next prime is 211105101289. The reversal of 211105101222 is 222101501112.

211105101222 is a `hidden beast` number, since 21 + 1 + 10 + 510 + 122 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211105101195 and 211105101204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24620128 + ... + 24628700.

It is an arithmetic number, because the mean of its divisors is an integer number (9561266091).

Almost surely, 2^211105101222 is an apocalyptic number.

211105101222 is an abundant number, since it is smaller than the sum of its proper divisors (247835671146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211105101222 is a wasteful number, since it uses less digits than its factorization.

211105101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13045 (or 13042 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 211105101222 its reverse (222101501112), we get a palindrome (433206602334).

The spelling of 211105101222 in words is "two hundred eleven billion, one hundred five million, one hundred one thousand, two hundred twenty-two".