233213120221 has 16 divisors (see below), whose sum is σ = 237148107840. Its totient is φ = 229299016320.

The previous prime is 233213120183. The next prime is 233213120267. The reversal of 233213120221 is 122021312332.

It is a cyclic number.

It is not a de Polignac number, because 233213120221 - 2²⁷ = 233078902493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233213120192 and 233213120201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233213120281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67381431 + ... + 67384891.

It is an arithmetic number, because the mean of its divisors is an integer number (14821756740).

Almost surely, 2^233213120221 is an apocalyptic number.

It is an amenable number.

233213120221 is a deficient number, since it is larger than the sum of its proper divisors (3934987619).

233213120221 is a wasteful number, since it uses less digits than its factorization.

233213120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 233213120221 its reverse (122021312332), we get a palindrome (355234432553).

The spelling of 233213120221 in words is "two hundred thirty-three billion, two hundred thirteen million, one hundred twenty thousand, two hundred twenty-one".