22111200002222 has 12 divisors (see below), whose sum is σ = 35004295849536. Its totient is φ = 10473726316500.

The previous prime is 22111200002173. The next prime is 22111200002233. The reversal of 22111200002222 is 22220000211122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22111200002222.

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, 15312464654 + ... + 15312466097.

It is an arithmetic number, because the mean of its divisors is an integer number (2917024654128).

Almost surely, 2^{22111200002222} is an apocalyptic number.

22111200002222 is a deficient number, since it is larger than the sum of its proper divisors (12893095847314).

22111200002222 is a wasteful number, since it uses less digits than its factorization.

22111200002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30624930791 (or 30624930772 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22111200002222 its reverse (22220000211122), we get a palindrome (44331200213344).

The spelling of 22111200002222 in words is "twenty-two trillion, one hundred eleven billion, two hundred million, two thousand, two hundred twenty-two".