202245121 has 8 divisors (see below), whose sum is σ = 217972160. Its totient is φ = 186542352.

The previous prime is 202245103. The next prime is 202245157. The reversal of 202245121 is 121542202.

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 202245121 - 2⁷ = 202244993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202245161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13636 + ... + 24298.

It is an arithmetic number, because the mean of its divisors is an integer number (27246520).

Almost surely, 2^202245121 is an apocalyptic number.

It is an amenable number.

202245121 is a deficient number, since it is larger than the sum of its proper divisors (15727039).

202245121 is a wasteful number, since it uses less digits than its factorization.

202245121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12135.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 202245121 is about 14221.2911157883. The cubic root of 202245121 is about 586.9836680319.

Adding to 202245121 its reverse (121542202), we get a palindrome (323787323).

The spelling of 202245121 in words is "two hundred two million, two hundred forty-five thousand, one hundred twenty-one".