201121230 has 32 divisors (see below), whose sum is σ = 483076224. Its totient is φ = 53589536.

The previous prime is 201121229. The next prime is 201121253. The reversal of 201121230 is 32121102.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58417 + ... + 61763.

It is an arithmetic number, because the mean of its divisors is an integer number (15096132).

Almost surely, 2^201121230 is an apocalyptic number.

201121230 is an abundant number, since it is smaller than the sum of its proper divisors (281954994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201121230 is a wasteful number, since it uses less digits than its factorization.

201121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5360.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 201121230 is about 14181.7216867347. The cubic root of 201121230 is about 585.8943439219.

Adding to 201121230 its reverse (32121102), we get a palindrome (233242332).

The spelling of 201121230 in words is "two hundred one million, one hundred twenty-one thousand, two hundred thirty".