22220221211222 has 4 divisors (see below), whose sum is σ = 33330331816836. Its totient is φ = 11110110605610.

The previous prime is 22220221211189. The next prime is 22220221211239. The reversal of 22220221211222 is 22211212202222.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555055302804 + ... + 5555055302807.

It is an arithmetic number, because the mean of its divisors is an integer number (8332582954209).

Almost surely, 2^{22220221211222} is an apocalyptic number.

22220221211222 is a deficient number, since it is larger than the sum of its proper divisors (11110110605614).

22220221211222 is a wasteful number, since it uses less digits than its factorization.

22220221211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110110605613.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22220221211222 its reverse (22211212202222), we get a palindrome (44431433413444).

The spelling of 22220221211222 in words is "twenty-two trillion, two hundred twenty billion, two hundred twenty-one million, two hundred eleven thousand, two hundred twenty-two".