1022202212221 has 8 divisors (see below), whose sum is σ = 1031981912640. Its totient is φ = 1012426704768.

The previous prime is 1022202212209. The next prime is 1022202212257. The reversal of 1022202212221 is 1222122022201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022202212221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022202212201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557236 + ... + 1534573.

It is an arithmetic number, because the mean of its divisors is an integer number (128997739080).

Almost surely, 2^{1022202212221} is an apocalyptic number.

It is an amenable number.

1022202212221 is a deficient number, since it is larger than the sum of its proper divisors (9779700419).

1022202212221 is a wasteful number, since it uses less digits than its factorization.

1022202212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096483.

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

Adding to 1022202212221 its reverse (1222122022201), we get a palindrome (2244324234422).

The spelling of 1022202212221 in words is "one trillion, twenty-two billion, two hundred two million, two hundred twelve thousand, two hundred twenty-one".