1220221022222 has 8 divisors (see below), whose sum is σ = 1842452934672. Its totient is φ = 606070044000.

The previous prime is 1220221022171. The next prime is 1220221022243. The reversal of 1220221022222 is 2222201220221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1220221022194 and 1220221022203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020233179 + ... + 2020233782.

It is an arithmetic number, because the mean of its divisors is an integer number (230306616834).

Almost surely, 2^{1220221022222} is an apocalyptic number.

1220221022222 is a deficient number, since it is larger than the sum of its proper divisors (622231912450).

1220221022222 is a wasteful number, since it uses less digits than its factorization.

1220221022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040467114.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1220221022222 its reverse (2222201220221), we get a palindrome (3442422242443).

The spelling of 1220221022222 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, twenty-two thousand, two hundred twenty-two".