2111201112222 has 20 divisors (see below), whose sum is σ = 4730654344416. Its totient is φ = 703733704020.

The previous prime is 2111201112217. The next prime is 2111201112253. The reversal of 2111201112222 is 2222111021112.

2111201112222 is a `hidden beast` number, since 211 + 120 + 1 + 112 + 222 = 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 = 2111201112195 and 2111201112204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6516052654 + ... + 6516052977.

Almost surely, 2^{2111201112222} is an apocalyptic number.

2111201112222 is an abundant number, since it is smaller than the sum of its proper divisors (2619453232194).

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

2111201112222 is a wasteful number, since it uses less digits than its factorization.

2111201112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13032105645 (or 13032105636 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2111201112222 its reverse (2222111021112), we get a palindrome (4333312133334).

The spelling of 2111201112222 in words is "two trillion, one hundred eleven billion, two hundred one million, one hundred twelve thousand, two hundred twenty-two".