202201129 has 4 divisors (see below), whose sum is σ = 217755076. Its totient is φ = 186647184.

The previous prime is 202201123. The next prime is 202201133. The reversal of 202201129 is 921102202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 921102202 = 2 ⋅460551101.

It can be written as a sum of positive squares in 2 ways, for example, as 111513600 + 90687529 = 10560^2 + 9523^2 .

It is a cyclic number.

It is not a de Polignac number, because 202201129 - 2⁹ = 202200617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202201123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7776954 + ... + 7776979.

It is an arithmetic number, because the mean of its divisors is an integer number (54438769).

Almost surely, 2^202201129 is an apocalyptic number.

It is an amenable number.

202201129 is a deficient number, since it is larger than the sum of its proper divisors (15553947).

202201129 is a wasteful number, since it uses less digits than its factorization.

202201129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15553946.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 202201129 is about 14219.7443366609. The cubic root of 202201129 is about 586.9411050636.

The spelling of 202201129 in words is "two hundred two million, two hundred one thousand, one hundred twenty-nine".