2221221202222 has 16 divisors (see below), whose sum is σ = 3675565220400. Its totient is φ = 998301663040.

The previous prime is 2221221202201. The next prime is 2221221202253. The reversal of 2221221202222 is 2222021221222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2221221202193 and 2221221202202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567214897 + ... + 567218812.

It is an arithmetic number, because the mean of its divisors is an integer number (229722826275).

Almost surely, 2^{2221221202222} is an apocalyptic number.

2221221202222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221221202222 is a deficient number, since it is larger than the sum of its proper divisors (1454344018178).

2221221202222 is a wasteful number, since it uses less digits than its factorization.

2221221202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134433811.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2221221202222 its reverse (2222021221222), we get a palindrome (4443242423444).

The spelling of 2221221202222 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred two thousand, two hundred twenty-two".