802222221 has 8 divisors (see below), whose sum is σ = 1116135360. Its totient is φ = 511561952.

The previous prime is 802222217. The next prime is 802222229. The reversal of 802222221 is 122222208.

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

It is not a de Polignac number, because 802222221 - 2² = 802222217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802222229) 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, 5813136 + ... + 5813273.

It is an arithmetic number, because the mean of its divisors is an integer number (139516920).

Almost surely, 2^802222221 is an apocalyptic number.

It is an amenable number.

802222221 is a deficient number, since it is larger than the sum of its proper divisors (313913139).

802222221 is a wasteful number, since it uses less digits than its factorization.

802222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11626435.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 802222221 is about 28323.5276934212. The cubic root of 802222221 is about 929.1765250815.

Adding to 802222221 its reverse (122222208), we get a palindrome (924444429).

The spelling of 802222221 in words is "eight hundred two million, two hundred twenty-two thousand, two hundred twenty-one".