202132121 has 8 divisors (see below), whose sum is σ = 213506304. Its totient is φ = 191061360.

The previous prime is 202132111. The next prime is 202132157. The reversal of 202132121 is 121231202.

It is a happy number.

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 202132121 - 2¹⁸ = 201869977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 202132096 and 202132105.

It is not an unprimeable number, because it can be changed into a prime (202132111) 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 7 ways as a sum of consecutive naturals, for example, 74486 + ... + 77151.

It is an arithmetic number, because the mean of its divisors is an integer number (26688288).

Almost surely, 2^202132121 is an apocalyptic number.

It is an amenable number.

202132121 is a deficient number, since it is larger than the sum of its proper divisors (11374183).

202132121 is a wasteful number, since it uses less digits than its factorization.

202132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151711.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 202132121 is about 14217.3176443378. The cubic root of 202132121 is about 586.8743262733.

Adding to 202132121 its reverse (121231202), we get a palindrome (323363323).

The spelling of 202132121 in words is "two hundred two million, one hundred thirty-two thousand, one hundred twenty-one".