202202211121 has 8 divisors (see below), whose sum is σ = 214113676104. Its totient is φ = 190292659200.

The previous prime is 202202211091. The next prime is 202202211143. The reversal of 202202211121 is 121112202202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 97718760000 + 104483451121 = 312600^2 + 323239^2 .

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 202202211121 - 2¹⁷ = 202202080049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202202211095 and 202202211104.

It is not an unprimeable number, because it can be changed into a prime (202202211181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257740 + ... + 686173.

It is an arithmetic number, because the mean of its divisors is an integer number (26764209513).

Almost surely, 2^202202211121 is an apocalyptic number.

It is an amenable number.

202202211121 is a deficient number, since it is larger than the sum of its proper divisors (11911464983).

202202211121 is a wasteful number, since it uses less digits than its factorization.

202202211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956531.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202202211121 its reverse (121112202202), we get a palindrome (323314413323).

The spelling of 202202211121 in words is "two hundred two billion, two hundred two million, two hundred eleven thousand, one hundred twenty-one".