2111222100222 has 12 divisors (see below), whose sum is σ = 4574314550520. Its totient is φ = 703740700068.

The previous prime is 2111222100199. The next prime is 2111222100259. The reversal of 2111222100222 is 2220012221112.

It is a happy number.

2111222100222 is a `hidden beast` number, since 211 + 1 + 22 + 210 + 0 + 222 = 666.

It is a super-2 number, since 2×2111222100222² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 117290116679 = 2111222100222 / (2 + 1 + 1 + 1 + 2 + 2 + 2 + 1 + 0 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2111222100195 and 2111222100204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58645058322 + ... + 58645058357.

It is an arithmetic number, because the mean of its divisors is an integer number (381192879210).

Almost surely, 2^{2111222100222} is an apocalyptic number.

2111222100222 is an abundant number, since it is smaller than the sum of its proper divisors (2463092450298).

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

2111222100222 is a wasteful number, since it uses less digits than its factorization.

2111222100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117290116687 (or 117290116684 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2111222100222 its reverse (2220012221112), we get a palindrome (4331234321334).

The spelling of 2111222100222 in words is "two trillion, one hundred eleven billion, two hundred twenty-two million, one hundred thousand, two hundred twenty-two".