201021233 has 8 divisors (see below), whose sum is σ = 230693760. Its totient is φ = 171587520.

The previous prime is 201021229. The next prime is 201021241. The reversal of 201021233 is 332120102.

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 201021233 - 2² = 201021229 is a prime.

It is a super-2 number, since 2×201021233² = 80819072233680578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201021253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57893 + ... + 61266.

It is an arithmetic number, because the mean of its divisors is an integer number (28836720).

Almost surely, 2^201021233 is an apocalyptic number.

It is an amenable number.

201021233 is a deficient number, since it is larger than the sum of its proper divisors (29672527).

201021233 is a wasteful number, since it uses less digits than its factorization.

201021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119407.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 201021233 is about 14178.1956891559. The cubic root of 201021233 is about 585.7972260638.

Adding to 201021233 its reverse (332120102), we get a palindrome (533141335).

The spelling of 201021233 in words is "two hundred one million, twenty-one thousand, two hundred thirty-three".