1222220012222 has 8 divisors (see below), whose sum is σ = 1999996383672. Its totient is φ = 555554551000.

The previous prime is 1222220012207. The next prime is 1222220012267. The reversal of 1222220012222 is 2222100222221.

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 = 1222220012194 and 1222220012203.

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, 27777727529 + ... + 27777727572.

It is an arithmetic number, because the mean of its divisors is an integer number (249999547959).

Almost surely, 2^{1222220012222} is an apocalyptic number.

1222220012222 is a deficient number, since it is larger than the sum of its proper divisors (777776371450).

1222220012222 is a wasteful number, since it uses less digits than its factorization.

1222220012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55555455114.

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

Adding to 1222220012222 its reverse (2222100222221), we get a palindrome (3444320234443).

The spelling of 1222220012222 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, twelve thousand, two hundred twenty-two".