1022221021222 has 8 divisors (see below), whose sum is σ = 1533342004056. Its totient is φ = 511107019872.

The previous prime is 1022221021207. The next prime is 1022221021229. The reversal of 1022221021222 is 2221201222201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1022221021222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022221021229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1362528 + ... + 1975075.

It is an arithmetic number, because the mean of its divisors is an integer number (191667750507).

Almost surely, 2^{1022221021222} is an apocalyptic number.

1022221021222 is a deficient number, since it is larger than the sum of its proper divisors (511120982834).

1022221021222 is a wasteful number, since it uses less digits than its factorization.

1022221021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490742.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1022221021222 its reverse (2221201222201), we get a palindrome (3243422243423).

The spelling of 1022221021222 in words is "one trillion, twenty-two billion, two hundred twenty-one million, twenty-one thousand, two hundred twenty-two".