202222000121 has 4 divisors (see below), whose sum is σ = 204224198244. Its totient is φ = 200219802000.

The previous prime is 202222000103. The next prime is 202222000129. The reversal of 202222000121 is 121000222202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154401057721 + 47820942400 = 392939^2 + 218680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202222000121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202222000096 and 202222000105.

It is not an unprimeable number, because it can be changed into a prime (202222000129) 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, 1001098910 + ... + 1001099111.

It is an arithmetic number, because the mean of its divisors is an integer number (51056049561).

Almost surely, 2^202222000121 is an apocalyptic number.

It is an amenable number.

202222000121 is a deficient number, since it is larger than the sum of its proper divisors (2002198123).

202222000121 is a wasteful number, since it uses less digits than its factorization.

202222000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002198122.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202222000121 its reverse (121000222202), we get a palindrome (323222222323).

The spelling of 202222000121 in words is "two hundred two billion, two hundred twenty-two million, one hundred twenty-one", and thus it is an aban number.