2221222120222 has 12 divisors (see below), whose sum is σ = 3875805944640. Its totient is φ = 951952337196.

The previous prime is 2221222120213. The next prime is 2221222120237. The reversal of 2221222120222 is 2220212221222.

It is a junction number, because it is equal to n+sod(n) for n = 2221222120193 and 2221222120202.

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, 11332765822 + ... + 11332766017.

It is an arithmetic number, because the mean of its divisors is an integer number (322983828720).

Almost surely, 2^{2221222120222} is an apocalyptic number.

2221222120222 is a deficient number, since it is larger than the sum of its proper divisors (1654583824418).

2221222120222 is a wasteful number, since it uses less digits than its factorization.

2221222120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22665531855 (or 22665531848 counting only the distinct ones).

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

Adding to 2221222120222 its reverse (2220212221222), we get a palindrome (4441434341444).

The spelling of 2221222120222 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, two hundred twenty-two".