802222121 has 8 divisors (see below), whose sum is σ = 810336960. Its totient is φ = 794118928.

The previous prime is 802222117. The next prime is 802222171. The reversal of 802222121 is 121222208.

It is a happy number.

802222121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 802222121 - 2² = 802222117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 802222093 and 802222102.

It is not an unprimeable number, because it can be changed into a prime (802222111) 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, 216335 + ... + 220011.

It is an arithmetic number, because the mean of its divisors is an integer number (101292120).

Almost surely, 2^802222121 is an apocalyptic number.

It is an amenable number.

802222121 is a deficient number, since it is larger than the sum of its proper divisors (8114839).

802222121 is a wasteful number, since it uses less digits than its factorization.

802222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 802222121 is about 28323.5259281044. The cubic root of 802222121 is about 929.1764864730.

Adding to 802222121 its reverse (121222208), we get a palindrome (923444329).

The spelling of 802222121 in words is "eight hundred two million, two hundred twenty-two thousand, one hundred twenty-one".